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Assignment 6-GIA Colored Stones; Questions and Answers 100% Pass
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Assignment 6-GIA Colored Stones; Questions and Answers 100% Pass
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Assignment 6-GIA Colored Stones; Questions andAnswers 100% Pass
commercially important gems Correct-Treatments that improve gem appearance and
quality increase the supply of...
available, affordable Correct-Treatments that make gems more _____________ and
____________ are an important part of today's gem and jewelry market.
disclosed Correct-All treatments, even suspected or probable treatments, should be
______________ as part of every transaction.
gems that are commonly heat treated Correct-Corundum, tanzanite, zircon, topaz,
aquamarine, and amber.
heat treatment Correct-What can alter color and create or eliminate phenomena and
inclusions?
lattice diffusion with titanium Correct-What produces a shallow layer of color that can be
removed with minor repolishing?
, Assignment 6-GIA Colored Stones; Questions and
Answers 100% Pass
beryllium, penetrate Correct-The color resulting from lattice diffusion with
_______________, might ______________ the entire stone.
emeralds Correct-Almost all ______________ on the market today are fracture filled.
irradiated, heat, light Correct-____________ color is not always stable and exposure to
_________ or __________ can destroy it.
topaz, tourmaline, cultured pearl Correct-Commonly irradiated gems include,
bleaching Correct-What is a fairly common pearl treatment?
jadeite Correct-What is often treated with a combination of bleaching and impregnation?
dyeing Correct-What is one of the oldest gem treatments?
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