Amethyst
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Gemstones:
Amethyst
Purple has long been considered a royal color so it
is not surprising that amethyst has been so much in demand over
history. Fine amethysts are featured in the British Crown Jewels and
were also a favorite of Catherine the Great and Egyptian royalty.
Moses described it as a symbol of the Spirit of God
in the official robes of the High Priest of the Jews and the Russian
Empress Catherine the Great sent thousands of miners into the Urals to
look for it. In popular belief, the amethyst offers protection against
drunkenness - for the Greek words 'amethystos' mean 'not intoxicated'
in translation.
Because amethyst was thought to encourage celibacy
and symbolize piety, amethyst was very important in the ornamentation
of Catholic and other churches in the Middle Ages. It was, in
particular, considered to be the stone of bishops and they still often
wear amethyst rings.
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In Tibet, amethyst is considered to be sacred to Buddha and
rosaries are often fashioned from it. |
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Leonardo Da Vinci wrote that amethyst was able to dissipate evil
thoughts and quicken the intelligence.
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Amethyst Cathedral
Amethyst
(transparent purple quartz) is the most important quartz variety used
in jewelry.
Besides its royal color, Amethyst is also the King of the Quartz gem
family. It is the most sought-after variety, ranging in color from the
pastel lavender (Rose-La-France) to the deepest royal purple
imaginable.
It is a widely distributed mineral, but fine, clear specimens that
are suitable for cutting as ornamental stones are confined to
comparatively few localities. These crystals occur either in the
cavities of mineral-veins and in granite rocks, or as a lining in
agate geodes. Many of the hollow agates of Brazil and Uruguay contain
a crop of amethyst crystals in the interior. Much fine amethyst comes
from Russia as well, especially from near Mursinka in the
Ekaterinburg district, where it occurs in drusy cavities in granite
rocks. Many localities in India yield amethyst; where it is mostly
found in the form of pebbles.
While gem amethyst is mined in most gem producing nations, today's
market is principally supplied from the following sources: Brazil, Bolivia,
Uruguay, and Zambia.
Amethyst Fish Carving
Mystery of Amethyst:
The amethyst has its hardness (7), its moderate refraction and its
weight in common with the other quartzes, but the crystal structure is
different, and it is most unconventional. The construction is
stratified, as a result of which areas and lamellae of varying color
intensity often occur. This explains why there are relatively few
large cut amethysts of an evenly distributed dark color, in spite of
its having been found so abundantly in all parts of the world. It is
only in the last few years that scientists have been fairly certain of
having found the real cause of the color. It is now attributed to
certain iron constituents in connection with naturally occurring
radiation.
Uruguay Bi-Color Amethyst
One thing
that has been known for a long time is the fact that amethyst changes
its color when being heated. Smoky stones are transformed at
temperatures of as little as 250 degrees to a shining yellow to
brownish-red, while clear ones, i.e. those with a high degree of
transparency, become yellow or colorless at 400 degrees. Now and then
Nature gives us a surprise by having created bicolor stones, like the
ones recently found in
Bolivia in the form of crystal nuggets. This variety is
known as Ametrine, for in its formation certain energy states of iron
introduce violet areas to the yellow citrine.
Amethyst
is
considered a Type 2 gemstone.
Type 2 Description: Usually eye clean except for larger
stones witch may have some eye visible inclusions.
Amethyst Crystal Nugget
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