About Greypuss
Jewellery
We are a family owned and run company, based in the north-east
of Scotland, in Aberdeenshire. We sell good quality silver and
gold gemstone jewellery at low prices, giving everyone a chance
to own something nice, without breaking the bank. Our jewellery
is sourced from around the world.
We sell through our website, www.greypussjewellery.com, at local
fairs, and shows, and also through party plan. We like to give
a personal service, and help people find the piece of jewellery
they want. We have links with several manufacturers who will make
that special 'one of' piece for you. We have an extensive stock,
a fraction of which is listed on www.greypussjewellery.com. If
you are looking for something specific, and don't see it on the
site, please contact us on info@greypussjewellery.com, or phone
on (00 44) (1) 771 622878, and discuss what you need with us,
as we may have that elusive item in stock.
We post out items the next posting day after receiving your payment,
using Royal Mail, 'Next Day Delivery,' or International Signed
For.'
We have a 'no quibble returns policy.' Any item you don't like
can be returned for a full refund, minus the postage charges,
at any point, within 30 days of it being bought, as long as it
is in an unworn state.
Payment within the UK can be by postal order, cheque, cash, credit card, or Paypal.
All our jewellery is posted out in jeweller's boxes, or pouches
depending on what you have ordered, so it is suitable for giving
as a gift. We have a gift wrapping service, if needed.
Greypuss looks forward to adding you to our ever expanding client
base.
Party Plan
We also do party plan to let you and your friends try on our jewellery.
All hosteses get a thank-you gift of £50 to spend at their
own party, irrespective of sales. Greypuss is happy to travel
to parties, within the Scotland. If you want to book one please
contact us on 01771-622878, and we'll arrange a mutually suitable
date.
Designers
Linda Macdonald designs and hand-makes all her jewellery, with her team, in a workshop near Loch Lomond in Scotland. She graduated from the Glasgow School of Art in 1996 and started her business the following year. Her aim is to make contemporary jewellery that is fun for all ages - with some designs being quite “quirky” while other designs follow more simplistic lines.
Arzu is a young silversmith, living and working in Istanbul in Turkey. Her career changed direction, in a relatively short time, from bank manager, to artist.
She has followed the traditions of generations of Turkish skilled artisans, giving a modern slant to traditional methods, using modern techniques in creating fabulous jewellery from silver and annealed glass.
Arzu, works with various coloured rods of glass, melting them into artistic shapes, then baking them in a kiln, to 'anneal' the glass, removing the impurities, thus strengthening the material. It will not shatter like a lot of the cheaper glass products presently on the market.
Once she has her 'annealed glass jewels,' she creates silver settings for them, producing highly original, eye-catching pieces. Every piece is a genuine, original, unique piece, as no two 'jewels' of annealed glass leave the kiln, matching each other.
She sells her unique designer jewellery under the label of 'Silver Loves Glass.'
Gem Information
- Do some of the more unusual gems puzzle you?
- What is the birthstone for September?
- What is Tanzanite?
Please look through the next part to find out more about the
gems being sold by Greypussjewellery.com.
If you can't find the information you need, please contact us
on info@greypussjewellery.com, and we'll do our best to answer
your question.
| Blue Opal Durability | Mineral Gemstones |
Organic Gemstones
| Precious Stones | Alexandrite |
Amethyst
Aquamarine | Chalcedony | Chrome Diopside |
Citrine | Diamond |
Emerald |
Garnet | Ruby |
Iolite | Kunzite
Lapis Lazuli
Moonstone | Morganite |
Opal | Pearls |
Peridot | Rose Quartz
| Smoky Quartz | Spinel
Tanzanite | Tiger's eye | Topaz |
Tourmaline |Tzavorite |
Zircon
Birthstones
The following is the official birthstone list from the American
National Association of Jewellers. Officially adopted in 1912,
these gemstones represent the birthstones that are accepted
today in the United States. The modern birthstone list includes:
Garnet (January), Amethyst (February), Aquamarine (March), Diamond
(April), Emerald (May), Pearl or Moonstone (June), Ruby (July),
Peridot (August), Sapphire (September), Opal or Tourmaline (October),
Yellow Topaz or Citrine (November) and Turquoise, Blue Topaz
or Tanzanite (December). Tanzanite was added to December by
the American Gem Trade Association in 2002.
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Blue Opal
Legend says the Blue Opal has soft relaxing energies. Also, that it softens the impact of stress from the outside world and can help the wearer to release the trauma of old wounds. It helps you to face the future with a tranquil healing nature. Opal is the October Birthstone. See our range of handmade silver jewellery set with stunning, intensely coloured blue opals.
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Durability
The twofold test of durability for a mineral is of hardness
and toughness. One misconception is that these are the same
thing. Hardness, however, refers to a mineral's resistance to
scratching while toughness refers to its resistance to breaking.
A diamond, for example, is the hardest of all minerals, but
can be crushed with enough force. Jade, on the other hand, is
quite susceptible to scratching, but is considered one of the
toughest gemstones.
The hardness of a gemstone is determined by the Mohs scale,
which ranges from 1 to 10. Talc, which is 1 on the scale, is
softest, while diamonds are the hardest at 10 .
Other classifications of gemstones include crystal structure,
optical characteristics, and specific gravity.
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Mineral Gemstones
Mineral gemstones are naturally growing rocks found in the earth's
surface. There are 16 groups of mineral gemstones, including:
Beryl, Chrysoberyl, Corundum, Diamond, Feldspar, Garnet, Jade,
Lapis Lazuli, Opal, Peridot, Quartz, Spinel, Topaz, Tourmaline,
Turquoise, and Zircon.
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Organic Gemstones
Organic gemstones are not as durable as gemstones from minerals,
and consist of four groups.
Amber, a fossil resin found in the sap of ancient tree pines,
usually lacks a crystalline structure. It is most often brown
or semi-transparent and mined.
Coral is crafted when a small marine animal known as a coral
polyp extracts calcium carbonate from the sea to build a protective
home for itself. The result of gem coral ranges from semi-translucent
to opaque and can be white, pink, orange, red, blue, violet,
gold, or black.
Pearl is formed inside an oyster, or any other mollusc that
deposits substances inside of its housing. Molluscs creating
pearls can be found in either fresh or salt water, but salt
water pearls are often more sought after for use in earrings,
bracelets, and necklaces. Most pearls are white, but they also
come in a variety of other colours, including black.
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Precious Stones
Four particular stones were once referred to as precious stones
primarily because of historical and ceremonial use while other
stones were referred to as semiprecious stones. These precious
are the stones, diamond, ruby, sapphire, and emerald, sometimes
known as the ‘Big Four.’
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Alexandrite
This rare gemstone is named after the Russian tsar Alexander
II (1818-1881), the very first crystals having been discovered
in April 1834 in the emerald mines near the Tokovaya River in
the Urals. The discovery was made on the day the future tsar
came of age. Although alexandrite is a relatively young gemstone,
it certainly has a noble history. Since it shows both red and
green, the principal colours of old Imperial Russia, it inevitably
became the national stone of tsarist Russia.
The most sensational feature about this stone, however, is its
surprising ability to change its colour. Green or bluish-green
in daylight, alexandrite turns a soft shade of red, purplish-red
or raspberry red in incandescent light. This unique optical
characteristic makes it one of the most valuable gemstones of
all, especially in fine qualities.
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Alexandrite is very scarce: this is due to its chemical composition.
It is basically a chrysoberyl, a mineral consisting of colourless
or yellow transparent chrysoberyl, chrysoberyl cat’s eye and
colour-changing alexandrite (also in cat’s eye varieties). It
differs from other chrysoberyls in that it not only contains
iron and titanium, but also chromium as a major impurity. And
it is this very element which accounts for the spectacular colour
change. Rarely, vanadium may also play a part.
Russia has remained the primary source of alexandrite since
gems from the mines of the Urals became available on the market.
When the Russian deposits were thought to have been exhausted,
interest in the unique colour miracle decreased - especially
since alexandrites from other mines hardly ever displayed the
coveted colour change - . But the situation changed dramatically
in 1987, when alexandrites were discovered in a place called
Hematita in Minas Gerais, Brazil. The Brazilian alexandrites
showed both a distinctive colour change and good clarity and
colour. Thus the somewhat dulled image of the miraculous stone
received another boost. The colour of the Brazilian stones is
admittedly not as strong a green as that of Russian alexandrite,
but the colour change is clearly discernible. Today Hematita
is one of the most important deposits of alexandrite in economic
terms. Occasionally alexandrite with chatoyancy is discovered
there, an effect which has not yet been observed in Russian
alexandrite. Alexandrites are also recovered from sources in
Sri Lanka, but the hue of these stones compares less than favourably
with that of the Uralian alexandrites. They appear green in
daylight and a brownish red in artificial light. The Tunduru
area in southern Tanzania has also produced some outstanding
specimens since the mid-1990’s. Alexandrites are also found
in India, Burma, Madagascar and Zimbabwe. Although this stone
is still considered a rarity, specialised gemstone dealers do
stock it.
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Amethyst
Purple has long been considered a royal colour so it is not
surprising that amethyst has been so much in demand during history.
Fine amethysts are featured in the British Crown Jewels and
were also a favourite of Catherine the Great and Egyptian royalty.
Amethyst, transparent purple quartz, is the most important quartz
variety used in jewellery.
Leonardo Da Vinci wrote that amethyst was able to dissipate
evil thoughts and quicken the intelligence. Amethyst ranges
in colour from pale lilac to deep purple. The pale colours are
sometimes called "Rose de France" and can be seen
set in Victorian jewellery. The deep colours are the most valuable,
particularly a rich purple with rose flashes.
Amethyst is mined in Brazil, Uruguay, Bolivia and Argentina,
as well as in Zambia, Namibia and other African countries.
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Aquamarine
Aquamarine is one of our most popular and best-known gemstones,
and distinguishes itself by many good qualities. It is almost
as popular as the classics: ruby, sapphire and emerald. In fact
it is related to the emerald, both belonging to the beryl family.
The colour of aquamarine, however, is usually more even than
that of the emerald. Much more often than its famous green cousin,
aquamarine is almost entirely free of inclusions. Aquamarine
has good hardness (7_ to 8 on the Mohs scale) and a wonderful
shine. That hardness makes it very tough and protects it to
a large extent from scratches. Iron is the substance which gives
aquamarine its colour, a colour which ranges from an almost
indiscernible pale blue to a strong sea-blue.
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The more intense
the colour of an aquamarine, the more value is put on it. Some
aquamarines have a light, greenish shimmer; that too is a typical
feature. However, it is a pure, clear blue that continues to
epitomise the aquamarine, because it brings out so well the
immaculate transparency and magnificent shine of this gemstone.
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Chalcedony
Quartz that is formed not of one single crystal but finely grained
micro crystals is known as chalcedony. The variety of chalcedony
is even greater than transparent quartz varieties because it
includes crypto crystalline quartz with patterns as well as
a wide range of solid colours. Agates are banded, bloodstone
has red spots on a green ground, moss agate has a vegetal pattern.
Jasper sometimes looks like a landscape painting. Another staple
of the jewellery industry is black onyx, chalcedony quartz which
owes its even black colour to an ancient dyeing process that
is still used today. Carnelian, another chalcedony valued in
the ancient world, has a vivid brownish orange colour and clear
translucency that makes it popular for signet rings and seals.
Chrysoprase, a bright apple green translucent chalcedony, is
the most valued.
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Chrome Diopside
Chrome Diopside has an ugly name but is a beautiful gem. It
has a beautiful rich green colour and an amazingly low price.
It is the most affordable gemstone with a pure rich green colour.
There are a few drawbacks. The chrome diopside is most available
in small sizes: in the rare large sizes, the colour becomes
so rich it is too dark. But for bright green accent stones,
chrome diopside is ideal.
Chrome diopside is mostly mined in Yakutia and Siberia. Sometimes
known as the 'Russian Emerald.'
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Citrine
Citrine is one of the most affordable gemstones, thanks to the
durability and availability of this golden quartz. Named from
the French name for lemon, "citron," many citrines
have a juicy lemon colour.
Citrine includes yellow to gold to orange brown shades of transparent
quartz. Sunny and affordable, citrine can brighten almost any
jewellery style, blending especially well with the yellow gleam
of polished gold.
In ancient times, citrine was carried as a protection against
snake venom and evil thoughts.
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Diamond
Diamonds are remarkably simple in composition, yet stunning
in its unique ability to reflect and refract light into vivid
flashes of brilliant colour. The ancient Hindus called the Diamond
"Vajra," meaning lightening, both because of the sparks
of light thrown off by this gem as well as its invincible strength.
The Diamond is harder than any other substance on earth.
Diamonds have been revered throughout history. Used to embellish
such items as crowns, swords and emblems as well as jewellery,
they've even been part of national holidays. Queen Victoria
declared the celebration of her 50th year of reign a "Diamond
Jubilee." Diamonds have also been credited for having certain
medicinal properties. During the middle ages, these gemstones
were thought to heal illness, but only if the ailing person
took the Diamond into bed to warm it up first!
Formed deep within the earth where there is intense heat and
pressure, Diamonds are simply crystallized carbon. Volcanic
activity of centuries ago brought these gemstones to the earth's
surface, where they are found either within volcanic rock formations
or washed out into rivers. India is thought to be the first
river-bed source of Diamond mining, but today these gemstones
are found primarily in Australia, the Soviet Union, and Africa.
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No more notable it its uncut state than a plain pebble upon
the beach, the true beauty of the Diamond was not revealed until
the 16th century, when gemstone cutting and polishing techniques
were perfected. Prior to this time, it was considered taboo
to modify the original state of a Diamond. Today, the value
and appeal of this stone depends largely upon how skilfully
it is cut and faceted.
A gift of a Diamond is symbolic of everlasting love. There is
no more convincing a promise of an enduring relationship than
the brilliant gemstone that has endured in people's hearts throughout
the ages.
It is now possible to buy fancy coloured diamonds. These are
genuine, mined diamonds, which have been heat treated to achieve
a permanent colour, e.g. blue, black, canary yellow, orange,
green, purple.
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Emerald
Often, in an emerald, there are tiny fractures or inclusions,
which the French call "jardin," or garden, because
of their resemblance to foliage. The Egyptians were known to
engrave emeralds with the symbol for foliage to represent eternal
youth, and to bury these jewels with their dead. The ancient
Romans associated this gemstone with fertility and rebirth,
and dedicated it to Venus, the goddess of love and beauty.
The Ancient Egyptians mined emeralds in the eastern desert region
2,000 years before Cleopatra’s birth, braving extreme heat,
scorpions and snakes to search for the beautiful crystals. During
Cleopatra’s reign, she claimed the emerald mines as her own,
as this was her favourite gem. She often wore lavish emerald
jewelry, and it is said that she bestowed visiting dignitaries
with large emeralds carved with her likeness when they departed
Egypt.
In the sixteenth century, the Spanish Conquistadors were amazed
to find the native people wearing Emeralds larger and more magnificent
than any they had ever seen. Although the natives attempted
to hide their Emerald mines, the Spaniards soon discovered and
conquered most of them. But it took twenty years before they
found the abundant mining operation held by the Muzo Indians,
and another thirty years to overtake this aggressive tribe.
The Muzo mine was in the area known today as Colombia, and it
remains the source of the most prized Emerald specimens. Other
sources of Emeralds are Brazil, Zimbabwe, Pakistan, Afghanistan,
Madagascar, Nigeria, and Russia.
The emerald is a member of the beryl family of minerals. The
green crystals grow slowly within metamorphic rocks and are
restricted in size by the rock, making large Emeralds rare and
costly. Although this gemstone is relatively hard and durable,
it must be protected from blows because the inclusions found
within make it susceptible to breaking.
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Some people believe that wearing an Emerald brings wisdom, growth,
and patience. And as any couple in a long-term relationship
would agree, all of these qualities are essential for a successful
and lasting love. This may explain why a gift of Emerald for
an anniversary -- or anytime -- is considered symbolic of love
and fidelity.
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Garnet
Garnets - aren’t these the wonderfully deep red gemstones which
are often found in antique jewellery? Well, this is only the
partial truth, as a warm and deep red is indeed the most frequently
occurring colour for Garnets. But unfortunately only few people
know that the realm of Garnets holds many more bright and beautiful
colours. The traditional image of Garnet has been brightly transformed
by spectacular finds, mainly from Africa. Although red remains
the major colour, Garnets today easily adapt to any new colour
trend in fashion due to the rich range available. And because
of the new finds, there are reliable sources for steady supply
in these fancy colours. All this explains why this very gemstone
family manages to keep on providing new impulses for the jewellery
events today.
Possibly the most famous green Garnet is Tsavorith or Tsavolith,
often called Tsavorite, another Grossularite. Tiffany’s in New
York re-named the stone which had been discovered in 1967 by
British geologist Campbell R. Bridges in North-East Tanzania.
The emerald-green stone was named after its occurrence near
the famous game park Tsavo-National Park. Tsavorite is of a
vivid light to velvety deep green and, like all other Garnets,
of strikingly high brilliance.
The star among green Garnets is rare Demantoid, a gemstone for
connoisseurs and lovers. It shows enormous brilliance, higher
even than that of Diamond. Russia’s leading court jeweller Carl
Fabergé loved the brilliant green Garnet from the Urals
more than any other stone, and liked to use it in his creations.
Nowadays Demantoid turns up more often in the gemstone market
because of the new finds in Namibia. Demantoids from Namibia
show good colour and brilliance, however, they lack minor characteristic:
the so-called "horsetail-inclusions”, fine bushy-shaped
inclusions which are the characteristic birthmark identifying
Russian Demantoids.
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Green Tourmaline
Green Tourmaline : Tourmaline is a virtually unique colour miracle
: this gemstone exists in red and green, blue and yellow, and
even in colourless and black respectively. Often there are even
two or more colours displayed in one and the same Tourmaline
crystal. Highly coveted rarities are colour changing Tourmalines
or chattoyant ones. However, the classical colour for Tourmaline
is green. And if you ask gemstone dealers for Tourmaline, the
green variety will almost inevitably be the first one to come
to their minds.
Nevertheless, even the green Tourmalines come in a wide range
of shades. Some are very light, others are so dark that the
green colour is only discernible when light is shone through
the stone. There are green Tourmalines in fine leek-green shades,
but there are also intensely coloured yellow-green, olive-green
and brownish-green stones. And especially the colour range from
blue-green to darkest bottle-green is covered spectacularly
by wonderful Tourmalines, for these colours are the best for
these stones. They are rare and highly coveted. Tourmaline is
loved as a perfect jewellery stone by many women, but it has
also come to be preferred nowadays by quite a few men.
Sometimes Tourmalines are offered by traders with an additional
byname, which at first sight seems to explain the stone’s origin.
For example, bottle-green Tourmaline might also be offered as
"Brazilian Tourmaline”. Here it should be noted that this
does not necessary imply that the stone was actually mined in
Brazil. In the past it was considered a rigid fact that all
bottle-green Tourmalines came almost exclusively from Brazil,
while blue-green to green shades were usually found in Africa.
Today things have changed, but the trade names have been kept
so that bottle-green Tourmalines are still called "Brazilian”
and bluish-green ones "African” Tourmalines, irrespective
of the actual place of origin. Another rarely used name which
is generally applied only among experts is the term "Verdelith".
It has been composed from the Latin word "viridis” for
"green” and the Greek suffix "lith” meaning "stone”.
But in general we talk about green Tourmaline.
Mines: The most important deposits of Green Tourmaline
are in Sri Lanka Lanka, Malgaxe Republic, Brazil, Namibia, Nigeria,
Mozambique, Pakistan and Afghanistan.
Care of your Green Tourmaline : It is recommended that you remove
your jewelryl for activities which may damage your ring etc.
Curiosities: Green Tourmalines can be cut in many different
variations. However, this demands a high degree of craftsmanship
and expertise, since most Tourmalines show a varied colour satiation
throughout the crystal depending on the axis of growth. Therefore,
then, dark stones have to be cut in such a way that the table
will be parallel to the main axis. In contrast to this, for
lighter coloured stones the table should be parallel to the
longitudinal axis in order to achieve a deeper colour. The cutter
has to keep this characteristic well in mind when planning and
executing the cut, since otherwise the colour of the cut stone
might end up too dark or to pale. And that would be a real shame,
because you need not be a gemstone expert in order to appreciate
the fascination of green Tourmalines. The colours are wonderfully
harmonic and pleasant, almost spiritual. Green Tourmalines are
an epitome of life, encompassing all its facets of vivid individuality.
Month: October
Symbolizes:Prosperity
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Iolite
When Leif Eriksson and the other legendary Viking explorers
ventured far out into the Atlantic Ocean, away from any coastline
that could help them determine position, they had a secret gem
weapon: iolite. The Viking mariners used thin pieces of iolite
as the world's first polarizing filter. Looking through an iolite
lens, they could determine the exact position of the sun, and
navigate safely to the new world and back.
The property that made iolite so valuable to the Vikings is
extreme pleochroism. Iolite has different colours in different
directions in the crystal. A cube cut from iolite will look
a violet blue almost like sapphire from one side, clear as water
from the other, and a honey yellow from the top. This property
led some people to call iolite "water sapphire" in
the past, a name that is now obsolete.
The name iolite comes from the Greek ios, which means violet.
Iolite is usually a purplish blue when cut properly, with a
softness to the colour that can be quite attractive.
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Kunzite
Kunzite is still a very young gemstone. It was not until 1902
that the New York jeweller and gemstone specialist George Frederick
Kunz (1856 – 1932) became the first person to give a comprehensive
description of this stone, which had just been discovered in
California. Since newly discovered gemstones are usually given
the name of their discoverer or patron, this new pale pink discovery
was called 'kunzite'.
Above all, the appeal of this gemstone lies in its clarity and
its fine delicate pink nuances which often display a hint of
violet.
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Lapis Lazuli
Lapis lazuli, also known as just lapis, is a stone with one
of the longest traditions of being considered a gem, with a
history stretching back to 5000 BC. Deep blue in color and opaque,
this gemstone was highly prized by the pharaohs of ancient Egypt,
as can be seen by its prominent use in many of the treasures
recovered from pharaonic tombs.For over 50,000 years, the best
rough stones have beenmined in the rough Hindukush Mountains
of Afghanistan. Forcefully extracted from the rocks, the blue
stone nodes are transported on donkeys from the rough mountain
ranges in Northeast Afghanistan down to the valleys in the summer
months. Other occurrences have been provided by Nature in Russia,
west of Lake Baikal, and in the Andes in Chile, where the blue
stones are often veined with white or grey chalk. Lapis lazuli
is also found in smaller amounts in Italy, Mongolia, the USA
and Canada, in Myanmar and in Pakistan. In really good qualities,
however, it is rare everywhere. Lapis lazuli jewellery is therefore
available in widely differing price ranges, from luxurious to
affordable. The price demanded for the gemstone depends mainly
on the stone’s beauty and intensity of colour. The most favoured
colour is a deep and intensive blue. Finely distributed crystals
resembling glimmer, from golden Pyrite, will increase the value
of the gemstone, while an irregular, pronounced or spotty patterning
will reduce it. It is still extremely popular today. The first
part of the name is the Latin lapis, meaning stone. The second
part, lazuli, is the genitive form of the medieval Latin lazulum,
a loanword adapted from the Arabic (al-)lazward, itself a borrowed
word from the Persian lazhward. This was originally a place-name,
but soon came to mean blue because of its association with the
stone. English azure, Spanish azul, Italian azur also derives
from this source. Taken as a whole, lapis lazuli means stone
of azure.
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Moonstone
Moonstone shows an almost magical play of light as its characteristic
feature. It owes its name to this mysterious gleaming which
appears different whenever the stone changes its position in
movement. Experts call this the “adularescence”, and in earlier
times the phases of waxing and waning moon were though to be
discerned in this phenomenon.
Moonstone from Sri Lanka, the classical country of origin for
Moonstone, shimmers pale blue on almost transparent ground.
Specimen from India shoe cloudlike plays of light and shade
on beige brown, green, orange or simple brown background. These
subdued colours in combination with the fine shine make Moonstone
an ideal gemstone for jewellery with a sensuous and feminine
character. This gemstone was once before extremely popular,
about a hundred years ago in the times of Art Nouveau. It used
to decorate a striking amount of pieces of jewellery created
by the famous French Master Goldsmith Lalique and by his contemporaries.
These pieces are usually only found in a museum or in collections
nowadays.
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Morganite
Although it came into existence millions of years ago, Morganite
found its name less than a hundred years ago. To be precise,
only in 1911, for before this the gemmologists considered "Pink
Beryl” simply a variety of Beryl in general, and not as an individual
stone. However, it is not only people but also stones who sometimes
change their names. Thus in the year 1911 New York gemstone
expert G.F. Kunz suggested to give Pink Beryl the status and
standing of an individual kind of gemstone, and it was named
in honour of banker and minerals collector John Pierport Morgan,
thus receiving its current name - Morganite.
The gem comes in many fine shades of pink. Some are clearly
pink, others tend more towards purple. Even a slight orange
hue may be sometimes found.
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Opal
The group of fine Opals includes quite a number of wonderful
gemstones, which share one characteristic: they shine and sparkle
in a continually changing play of colours full of fantasy, which
experts describe as “opalising”. Depending on the kind, place
of occurrence, and colour of the main body, we differentiate
Dark or Black Opal, White or Light Opal, Milk or Crystal Opal,
Boulder Opal, Opal Matrix, Yowah Nuts from Queensland – the
so-called “picture stones“, and also Mexican and Fire Opal.
Opal variations are practically unlimited. They all show in
their own special way that unique play of colours – except for
Fire Opal, which due to its transparency, however, is nevertheless
also considered a Fine Opal specimen. If Opals are lacking the
typical play of colours, they are simply named “Common Opal”.
Opals have had the reputation of being ‘unlucky.’ This is untrue.
It comes from their relative softness caused by being porous,
so when set in a ring, the wearer shouldn’t immerse their hands
wearing the ring, s the gemstone will absorb the water, and
eventually it will crack.
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Pearls
Pearls are an organic gem, created when an oyster covers a foreign
object with beautiful layers of nacre. Long ago, pearls were
important financial assets, comparable in price to real estate,
as thousands of oysters had to be searched for only one pearl.
They were rare because they were created only by chance.
Today pearls are cultured by man: shell beads are placed inside
an oyster and the oyster is returned to the water. When the
pearls are later harvested, the oyster has covered the bead
with layers of nacre. Most cultured pearls are produced in Japan.
In the warmer waters of the South Pacific, larger oysters produce
South Sea cultured pearls and Tahitian black cultured pearls,
which are larger in size. Freshwater pearls are cultured in
freshwater mussels, mostly in China.
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Peridot
The vivid, slightly golden shimmering green of Peridot is the
ideal gemstone colour to complement a light summertime outfit.
Peridot is an ancient and yet currently very popular gemstone.
It is so old that it can be found even in Egyptian jewellery
from the early second millennium BC. The stones used in those
days came from an occurrence on a little volcanic island in
the Red Sea, about 70 km off the Egyptian coast, off Assuan,
which was rediscovered only around 1900 and has been completely
exploited since. Peridot, however, is also a very modern stone,
for only a few years ago Peridot occurrences were discovered
in the Kashmir region, and the stones from there show a unique
beauty of colour and transparency, so that the image of the
stone, which was somewhat dulled over the ages, has received
an efficient polishing.
The ancient Romans were already quite fond of the gemstone and
coveted the brilliant green sparkle, which does not change either
in artificial light. They already named the stone “Evening Emerald”.
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Suddenly, around the middle of the 1990s, Peridot was the great
sensation on the Gemstone Trade Fairs all around the world.
The reason: In Pakistan there had been found a sensationally
rich occurrence of finest Peridot on a rough mountainside, in
about 4,000 m height. The extremely hard climatic conditions
only allowed mining to go on through the summer months, and
yet the unusually large and fine crystals and rocks were brought
down into the valley. These stones were of finer quality than
anything else ever seen before, and the occurrence proved so
rich that the high demand can be met without problems at present.
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Ruby
Ruby is the red variety of the corundum mineral, one of the hardest minerals on Earth which also includes Sapphire. Pure corundum is colourless. Slight traces of the colour creating elements such as chrome, iron, titanium or vanadium are responsible for the colour. These gemstones show an excellent hardness.
On the Mohs Scale they achieve a hardness of 9, second only to diamonds. And only red corundum may be called Ruby, any other colour is denominate as Sapphires. The close relationship of Ruby and Sapphire has been known since the beginning of the 19th century. Up to that time, also red Garnets or Spinels were thought to be Rubies – and due to this misclassification the so-called "Black Ruby” as well as the "Timur Ruby” decorating the British Crown Jewels are probably actually not Rubies at all, but Spinels.
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Sapphire
Pink is one of the many hues of the coloured gem called sapphire.
All sapphires are of the corundum variety (aluminum oxide composition)
of mineral. Corundum comes in many colours including blue, red,
violet, pink, green, yellow, orange, grey, white, colorless,
and black. Red corundum is called Ruby due to history. Historically
the chemical composition and crystal structures of the colored
gems were not known, and ruby has stuck as the name for red
corundum. Different traces of elements in the crystal structure
change the color of the gem. Colour is the light which is not
absorbed that is collected by the eye.
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When a colour is not specified, "sapphire" is taken
to be the blue to violet colour of corundum. Pink sapphires
are one of the other favourite colours of sapphires, considered
to be in the class of connoisseur gems. Buying pink sapphires
and other colored gems has certain things in common with buying
diamonds.The value of pink sapphires and other coloured gems
is not always exactly equal to the value of its Four C's, however
these aspects of the stones will guide you in your purchasing
pink sapphire.
The four C's of coloured gem stones
Diamonds have their four C's: Cut, Carat, Clarity and Colour.
The coloured gemstones also have their four C's:
Cut
Pink Sapphires, like all mineral gems, can have inclusions and
flaws. Additionally, the colour of a pink sapphire can range
from pale to "hot pink" to almost red. A high quality
cut will show the most even color through the pink sapphire
and expose the fewest inclusions. Some inclusions in certain
sapphires are actually valued highly and prized for the way
the inclusions enrich the gem's appearance, such as star sapphires
and certain Kashmir sapphires. However, pink sapphires are generally
valued higher with a lack of inclusions.
well Pink sapphire should allow the most light to pass through
the stone in its setting. Symmetry and polish are important
in the final value of the gem. In general, shallow cuts best
accent darker coloured gems and deep cuts bring out the best
facets of a lighter coloured gem. ith diamonds, there are many
styles of cuts, such as round, heart, princess, briollette and
more. No one or another style adds to the value so long as it
highlights the stone's brilliance.
Carat, or Size
Pink sapphires generally are sold based upon weight in carats
also. A carat is equal to 200 milligrams (.007 ounces, or 1/5
of a gram). The relationship of carat to size differs for gemstones.
Diamonds have a very defined density or specific gravity of
3.5. Sapphires range from 3.9 to 4.1 specific gravity. That
means a pink sapphire is in general more dense than a diamond,
so the same carat value will be a somewhat smaller gem than
the same carat weight diamond.
Clarity
Pink sapphires are generally more valuable with higher clarity.
Natural sapphires typically have some degree of inclusions,
so those which are flawless are very rare and very expensive.
Unlike diamonds, the natural color of gemstones can mask inclusions.
Thus inclusions are more accepted by the gem industry, especially
when the inclusion doesn't show in the face-up position of the
cut gemstone. There is no standardised grading system for clarity
in gems as there is for diamonds. Paler pink sapphires will
show inclusions more, so clarity for pink sapphires will be
reflected in the price. Generally you will see "Eye Clean"
as a very acceptable clarity rating for pink sapphires.
Colour
Pink. This is the color of pink sapphires, correct? Well, the
colour of pink ranges from a very pale pink to almost red. Remember,
if it's red, it's called a ruby, even though it's all corundum.
The "hot" pink is currently the most popular colour,
and thus valued higher in price.
Pink sapphires are a less expensive
gemstone than the popular pink diamonds.
Enhancements
Heat treatment is a common treatment of sapphires to enhance
their colour permanently without effecting the crystal structure.
Heat treatment may also remove tiny inner inclusions. Heat treatment
rarely effects the price of the sapphire, and presently around
90 percent of the sapphires in the jewellery market have been
heated to ensure that they have reached the best colour and
clarity.
Notes on Pink Sapphires
Sapphires have a hardness of 9 on the Mohs scale (1-10). This
makes sapphires second only to diamonds in their hardness. Like
diamonds, this makes them durable and valuable in jewellery.
Also like diamonds, pink sapphires must be cared for and handled
properly to avoid damage. Pink sapphires and diamonds together
make lovely jewellery that lasts and increases in value.
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Sapphires are found in India, Burma, Ceylon, Thailand, Vietnam, Australia, Brazil and Africa. The oldest Sapphire mines are situated in Ceylon, today called Sri Lanka, where gemstones were mined in ancient times. The expert recognises Ceylon sapphires from the luminosity and brilliance of their light to medium blue colour. Most blue Sapphires, however, come from Thailand or Australia. In the gemstone trade any non-blue Sapphire is termed "fancy”. When talking about fancy sapphires, we talk about yellow, purple, pink, green or white Sapphire, etc.
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Rose Quartz
The pale pink colour of quartz, which can range from transparent
to translucent, is known as rose quartz. The colour is a very
pale and delicate powder pink. Transparent rose quartz is very
rare and is usually so pale that it does not show very much
colour except in large sizes. The translucent quality of rose
quartz is much more available and is used for beads, cabochons,
carvings, and architectural purposes.
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Smoky Quartz
Smoky quartz is a brown transparent quartz that is sometimes
used for unusual faceted cuts. The commercial market is limited
due to the limited demand for brown gemstones. This variety
was sometimes known as smoky topaz in the past, which is incorrect
and misleading, since the mineral variety is quartz, not topaz.
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Spinel
Spinel is the great impostor of gemstone history: many famous
rubies in crown jewels around the world are actually spinel.
The most famous is the Black Prince's Ruby, a magnificent 170-carat
red spinel that currently adorns the Imperial State Crown in
the British Crown Jewels after a long history: Henry V even
wore it on his battle helmet! The Timur Ruby, a 352-carat red
spinel now owned by Queen Elizabeth, has the names of some of
the Mughal emperors who previously owned it engraved on its
face.
In Burma (Myanmar), where some of the most beautiful colours
are mined, spinel was recognized as a separate gem species as
early as 1587. In other countries the masquerade lasted for
hundreds of years after that. Spinels were most often referred
to as "balas rubies" which may have referred to colour
or to country of origin.
Spinel can be found in a range of beautiful pastel shades of
pink and purple. Of particular interest is a vivid hot pink
with a tinge of orange that is mined in Burma that is one of
the most spectacular gemstone colours in any gem species. Spinel
also comes in beautiful blues which are sometimes called cobalt
spinel, but these are very rare.
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Tanzanite
Tanzanite, was enthusiastically celebrated after its discovery
in 1967 as the "Gemstone of the 20th Century” The gemstone
experts literally held their breaths when they were shown the
first deep blue crystals mined in the Merelani Hills near Arusha
in the north of Tanzania. Millions of years ago, metamorphous
slates, gneiss stone and quarzites shaped impressive flat insular
mountains on the wide planes near Mount Kilimanjaro.
It was first discovered in Tanzania in 1967, and was named after
its country of origin, Tanzania, by the famous New York jeweller,
Louis Tiffany.
Tanzanite has what many would consider the finest blue hue in
the world of gemstones, a colour which often the finest sapphires
are lacking.
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There is only one tanzanite mine in the world, and it is fast
running out. Purchasing a tanzanite is a sound investment for
the future as prices will escalate, the closer the mine gets
to the end of its working life.
Tanzanite is in fact the blue variety of Zoisite gemstone. However,
the hydrated calcium aluminium silicate mineral achieves only
hardness 6.5 to 7 on the Moh’s scale, and is thus not very resistant.
Therefore it should be worn with care, never be cleaned by ultrasonic
method and never come into contact with acids.
When New York Jeweller Company Tiffany was presented with the
first Tanzanites right after they had been discovered, they
were immediately convinced: this gemstone is a sensation! However,
they recommended finding a new name for the blue beauty, since
the gemologically correct denomination "blue Zoisite"
reminded unfortunately of the word "suicide". So Tiffany's
suggested the name Tanzanite instead, derived from the place
of occurrence, and the new name quickly became established on
the market. And it was in fact the firm of Tiffany’s who introduced
the stone to the public in a spectacular promotional campaign
two years after it had been discovered. Spectacular and magnificent
is the deep blue of Tanzanite, ranging from ultramarine to a
light purplish blue. The most coveted colour is a blue which
shows a purplish hue shimmering around it, which is extremely
spectacular in sizes above ten carats. Typical for Tanzanite
is the appearance of several colours in one and the same stone:
depending on the perspective, the stone appears blue, purple,
or dun yellow. Most rough crystals, however, show a disturbingly
large proportion of brownish-yellow, but the cutter may cure
this by carefully heating the stone in an oven to about 500°C.
In the course of this heating , great care is needed to mark
the moment when the colour turns blue. Heating is therefore
a treatment which is generally accepted in the trade, however,
the rough stone has to be as free of inclusions as possible,
as otherwise the process will lead to fissures in the stone.
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Tiger's Eye
Tiger's Eye quartz contains brown iron which produces its golden-yellow
colour. Cabochon cut stones of this variety show the chatoyancy
(small ray of light on the surface) that resembles the feline
eye of a tiger. The most important deposit is in South Africa,
though Tiger's eye is also found in Western Australia, Burma
(Myanmar), India and the U.S. (California).
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Topaz
Brown, yellow, orange, sherry, red and pink topaz is found in
Brazil and Sri Lanka. Pink topaz is found in Pakistan and Russia.
Today, there is also blue topaz, which has a pale to medium
blue colour created by irradiation. Pale topaz which is enhanced
to become blue is found in Brazil, Sri Lanka, Nigeria, and China.
In early 1998, a new type of enhanced topaz made its appearance,
the surface-enhanced topaz, with colours described as blue to
greenish-blue or emerald green.
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Tourmaline
In order to understand this multitude of colours you will have
to polish up your knowledge of gemmology: Tourmalines are mixed
crystals of complex aluminium-borosilicate varying in their
composition. The slightest changes in composition will result
in completely different colours. In fact, crystals showing one
colour only are quite rare; generally one and the same crystal
displays several shades and colours. Not only the wide range
of colours characterises this gemstone, it also shows a remarkable
dichroism. Depending on the angle of view the colour will be
different or at least show different intensity. The deepest
colour always appears along the main axis, a fact that the gemstone
cutter has to keep in mind when cutting the stone. This gemstone
is excellently suited for wearing and is uncomplicated to care
for, since all Tourmalines show a hardness of 7 to 7.5 on the
Mohs’ scale. Thus Tourmaline is an interesting gemstone in many
aspects indeed.
The different shades of colour have been assigned different
names in the trade. For example, deep red Tourmaline is named
"Rubellite”, provided it shows the same fine ruby-red shade
in daylight and in artificial light. Should the colour change
when the source of light changes, the stone will be called a
"Pink Tourmaline”. Blue Tourmalines are called "Indigolith”,
"Dravite” is a golden-brown to dark brown Tourmaline, and
black Tourmalines are known as "Schorl”. The latter stone
is mainly used for engravings and in esotericism, where it is
highly cherished because it is reputed to ward off harmful radiation
from its wearer.
Very popular is "Verdelith”, the green Tourmaline, however,
if its fine emerald-like green is caused by traces of chromium,
the stone is named "Chromium-Tourmaline.” But the outstanding
highlight among Tourmalines is of course Paraiba Tourmaline,
a gemstone showing a vivid deep blue to bluish green, found
for the first time in1987 in the mines of the Brazilian state
of Paraiba. In good qualities these stones are much coveted
treasures. Since yellow Tourmalines from Malawi of brilliant
colour have been offered on the market, the formerly missing
colour yellow has been added in excellent quality to the apparently
unlimited range of colours shown by the "Rainbow Gemstone.”
Tourmaline has been given many names. There are there are bi-coloured
and multi-coloured Tourmalines Very popular are also slices
cut as cross-sections through Tourmalines, as these will render
the full splendour of colours embedded in a specific Tourmaline.
For example, such slices taken from Tourmalines with red heart
and green border are called a "Watermelon-Tourmaline”;
slices with a clear heart and a black border are called "Moor’s
head –Tourmaline”
Tourmalines are mined everywhere in the world. There are important
deposits in Brazil, in Sri Lanka and South and Southwest Africa.
Other deposits are in Nigeria, Zimbabwe, Kenya, Tanzania, Mozambique
and Madagascar, Pakistan and Afghanistan. Tourmalines are also
found in the USA, first of all in Maine and Utah. But although
there are rich occurrences of Tourmalines all over the world,
good qualities and fine colours are only rarely offered on the
market. Therefore, then, the price range achieved by Tourmaline
almost matches its wide range of colours.
Historical Note
Sri Lanka (formerly Ceylon) was partly responsible for Tourmaline's
first appearance in Europe when Tourmaline gems were sold to
Dutch traders who imported them to the West in the 1600s.
The Dutch, aside from admiring Tourmaline for its beauty, first
discovered that the gem possessed a unique property. Tourmaline
when heated or rubbed creates an electrical charge, similiar
to amber, becoming a magnet that attracts lightweight objects.
The Dutch used these Tourmaline magnets to clean pipes as their
magnetic properties attracted ash, and renamed Tourmaline "Aschentrekkers",
literally meaning 'one who treks through ashes'.
Today, Tourmalines special property, known as piezoelectricity,
has been incorporated into modern technologies such as computers,
musical keyboards, cellular phones and other hi-tech devices.
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Tzavorite
Contrary to other gemstones, Tzavorites are not heated or oiled.
This is not necessary for this gemstone. Like all other Garnets
it is genuinely natural. It is very robust. Although showing
a hardness similar to Emerald - around 7.5 on the Mohs´Scale,
it is far less sensitive in its handling. This is not only important
for cutting and setting the stone, but also for wearing. Tzavorite
is less likely to become damaged or to splinter even as consequence
of abrupt or incautious impact. It is excellently suited for
the favoured style of "invisible setting", where stones
are set closely joined, and which cannot be recommended for
Emeralds. Due to its high brilliance, Tzavorite here is an equal
match for the classical stones like Diamond, Ruby an Sapphire.
Why is it called Tzavorite or Tzavolith?
Naming gemstones is performed according to certain rules. Modern
mineralogical nomenclature demands that gemstones are given
a name ending in "ite". To honour the Tzavo National
Game Park and the Tzavo river running through this area, Henry
Platt , the former president of Tifany & Co, who was responsible
for the gemstone's rise to popularity, suggested the name Tzavorite.
Sometimes, however, Tzavolith is used but both denote the same
stone. The ending "lith? is simply the Greek word for "stone?.
What makes Tzavorite so desirable?
First of all there is its vividly brilliant green. The colour
scale shown by Tzavorite ranges from spring-like pale green
via intensely bluish green, to deep forest green, colours which
have an invigorating and fresh effect on the senses. The gemstone
is also coveted because of its high brilliance. Like all other
Garnets, it enjoys an especially high light refraction index
(1.734/ 44). It is understandable that old legends claimed garnets
were difficult to hide. Their sparkling light was reported to
be visible even through clothes.
Mines: Its native country is the bushland along the frontier
between Kenya and Tanzania.
History: In 1967, the British geologist Campbell R. Brides was
prospecting for gemstones in the north-eastern part of Tanzania.
Suddenly he came across some very odd, potato-shaped stone objects.
As in a fairy tale, he found breathtakingly beautiful green
grains and crystal pieces inside these weird objects. Gemmological
tests showed that he had discovered green grossularite, a mineral
which had up to then been considered very rare, part of the
colourful Garnet family. The stones were very beautiful and
of high transparency, so that his find, made experts sit up
and take notice. Even Tiffany & Co. in New York expressed
their interest in the newly discovered green jewel. But in spite
of all efforts it was impossible in those days to get an export
licence for taking the stones out of Tanzania. Campbell Bridges,
however, did not admit defeat. As a geologist he knew that those
layers in the soil which carry gemstones are generally not limited
to just one spot, but usually stretch out over vast areas, and
he believed he had encountered such a layer. After all, the
stone belt which accommodates most of East Africa's gemstone
mines is truly ancient. It was created many millions of years
ago, when the continents where still moving around a lot. In
those times the region in question had been part of the bottom
of the sea. The sedimental residue was compacted, folded and
thus shaped by the movements of the earth plates. The extremely
high pressure and high temperatures effected changes in the
originally existing stones. Thus new and amazingly beautiful
gemstones were created, among them also Tzavorite. But the gigantic
forces of Nature involved in the process of creation had already
damaged most of the crystals so that we usually only find grains
and pieces of them today.
Campbell R. Bridges stubbornly continued his search.
His theory that the gemstone loaded vein might even extend into
the Kenyan territory finally set him on the right track. In
the year 1971 he discovered the brilliantly green gemstone for
a second time, this time in Kenya, where he could officially
register his find and could start exploiting the occurrence.
This was the beginning of a new adventure: in order to protect
himself from wild animals Bridges lived in a tree house at first.
And as he ddi not want his treasure to be stolen, he cunningly
employed the workers' fear of snakes and had the rough stones
guarded by a python snake. It was a beautiful find indeed. Unfortunately,
however, the stone was only known to experts. This changed quickly
when in 1974 when Tiffany's started a special promotion campaign
making Tzavorite well-known in all the USA in only a short time.
Other promotion campaigns in other countries followed, and soon
Tzavorite was a name known everywhere.
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Zircon
Natural zircon today suffers for the similarity of its name
to cubic zirconia, the laboratory-grown diamond imitation. Some
don't realize that there is a beautiful natural gemstone called
zircon.
Zircon occurs in a wide range of colours but for many years,
the most popular was the colourless variety which looks more
like diamond than any other natural stone due to its brilliance
and dispersion.
Today the most popular colour is blue zircon. Most blue zircon,
which is considered an alternate birthstone for December, is
a pastel blue, but some exceptional gems have a bright blue
colour. Zircon is also available in green, dark red, yellow,
brown, and orange.
Zircon is mined in Cambodia, Sri Lanka, Thailand, Myanmar, Australia,
and other countries.
Zircon is one of the heaviest gemstones, which means that it
will look smaller than other varieties of the same weight. Zircon
jewellery should be stored carefully because although zircon
is relatively hard, it can abrade and facets can chip. Dealers
often wrap zircons in individual twists of paper so that they
will not knock against each other in a parcel.
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