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Two
different peridots, illustrating the importance of clarity. The
stone at left is heavily included, while that at right has far
better clarity. The
best-colored peridot has an iron percentage of less than 15% and
includes nickel and chromium as trace elements. It is not clear
whether the word peridot comes from the Arabic word faridat,
which means gem or if it is derived from the French word peritot
which means unclear. In the 18th century, the French were the
first to call this yellowish-green stone peridot. |
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Clarity. Since peridot is not a
particularly expensive stone, eye-clean clarity is the standard. Burmese
gems are often marred by small platelet inclusions, which may give some
stones a sleepy appearance. The strong birefringence (0.036) of peridot
can also give stones a slightly sleepy look. This is most pronounced in
large stones (10 cts. plus).
Only
imagination limits the cuts and shapes applied to peridot, with
everything from stunning fantasy cuts to tumbled beads being seen.
Again, because it is not terribly expensive, cutters can focus on beauty
more than weight retention. This means that good cutting, proportions
and symmetry are to be expected. Stay away from misshapen native cut
gems, unless they are cheap enough to recut to good proportions.A
silicate of magnesium and iron.
Common in
early Greek and Roman jewelry, Peridot has been popular since about 1500
BC when the Egyptians started mining it on Zebirget (St. John's Island),
a Red Sea island about 50 miles off the Egyptian coast. Known by the
ancient Egyptians as the "gem of the sun", Peridot was believed to
possess the power to break evil spells. During the Middle Ages, people
wore Peridot to gain foresight and divine inspiration.
Gem quality
peridot comes from Arizona, Burma, Norway, islands in the Red Sea,
Hawaii and is sometimes found in meteorites. It's been mined as a
gemstone for thousands of years, and is mentioned in the Bible under the
name of Chrysolite. Legend says that peridot was one of the favorite
gemstones of Cleopatra and that some of the "emeralds" worn by her were
actually peridot.
It is thought to
bring the wearer good luck, peace, and success,. Its powers include
health, protection, and sleep. The advantages of peridot are to attract
love and calm anger while also soothing nerves and dispelling negative
emotions.
Peridot: Never use mechanical or chemical cleaners. Simply use a soapy
water solution.
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