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Gemstone Discovery |
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Chrysoberyl
The stone of springtime,
youth and innocence, the name Chrysoberyl is derived from the Greek for
golden (Chryso) and green gemstone (beryl). When cut, Chrysoberyl is an
extremely brilliant stone, ideal for everyday wear and is rapidly gaining
in popularity amongst fashionable young designers.
Said to bring peace of mind and increase self-confidence, Chrysoberyl also
promotes kindness, generosity, benevolence, hope, optimism, renewal, new
beginnings, compassion and forgiveness.
Unlike its high-priced cousin Alexandrite, regular Chrysoberyl is very reasonably
priced and exceptionally tough (8.5 on the Moh's Scale of Hardness), producing
some extremely durable gems. Chrysoberyl is found in a variety of locations
around the world including: Brazil, Burma, India, Sri Lanka, Russia, the
Ural Mountains & Zimbabwe.
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Ordinary transparent Chrysoberyl
is most often yellow, yellowish green, or brown in color. The color in yellow
Chrysoberyl is due to iron (Fe+3) impurities. When well cut, it produces
bright, durable gems that are attractive and affordable.
Cat's-eye Chrysoberyl is a translucent gem ranging in color from a honey
yellow or honey brown to yellowish green to an apple green. It is known
for its reflected light effect called "chatoyancy." This is achieved by
cutting stones that have very small, parallel "silk" inclusions into cabochons.
As the gem is rotated, it exhibits a distinct, silvery white line across
its dome that seems to open and close like a cat's eye.
The most desired stones are brilliant yellows, greens and occasionally oranges.
The browner a Chrysoberyl is, the less valuable. Faceted stones over 10
carats are rare, over 20 carats extremely hard to obtain, and clean stones
over 30 carats are museum pieces.
Fine cat's-eyes may be yellow, yellowish green, or golden brown. In the
finest qualities, the gems will be semi-transparent and they will exhibit
a sharp white eye. As you turn the stone around, the eye will move. The
best cat's-eyes also exhibit a "milk and honey effect," when the stone is
rotated, one side of the stone appears transparent, as the other side takes
on a creamy appearance. In large cat's-eyes, the milk and honey effect is
an important consideration in valuing the stone.
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