GIA Colored Stones Assignment 6 Exam Questions and Answers 100% Solved
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Course
GIA Colored Stones
Institution
GIA Colored Stones
GIA Colored Stones Assignment 6 Exam
Questions and Answers 100% Solved
commercially important gems - Treatments that improve gem
appearance and quality increase the supply of...
available, affordable - Treatments that make gems more
_____________ and ____________ are an important part of today...
commercially important gems - ✔✔Treatments that improve gem
appearance and quality increase the supply of...
available, affordable - ✔✔Treatments that make gems more
_____________ and ____________ are an important part of today's gem
and jewelry market.
disclosed - ✔✔All treatments, even suspected or probable treatments,
should be ______________ as part of every transaction.
gems that are commonly heat treated - ✔✔Corundum, tanzanite, zircon,
topaz, aquamarine, and amber.
heat treatment - ✔✔What can alter color and create or eliminate
phenomena and inclusions?
lattice diffusion with titanium - ✔✔What produces a shallow layer of color
that can be removed with minor repolishing?
beryllium, penetrate - ✔✔The color resulting from lattice diffusion with
_______________, might ______________ the entire stone.
, emeralds - ✔✔Almost all ______________ on the market today are
fracture filled.
irradiated, heat, light - ✔✔____________ color is not always stable and
exposure to _________ or __________ can destroy it.
topaz, tourmaline, cultured pearl - ✔✔Commonly irradiated gems
include,
bleaching - ✔✔What is a fairly common pearl treatment?
jadeite - ✔✔What is often treated with a combination of bleaching and
impregnation?
dyeing - ✔✔What is one of the oldest gem treatments?
commonly dyed gems - ✔✔Cultured pearl, lapis lazuli, chalcedony, and
coral are examples of...
bleaching - ✔✔A treatment that uses chemicals to lighten or remove
color.
colorless impregnation - ✔✔Filling of pores or other openings with
melted wax, resin, polymer, or plastic to improve appearance and stability.
dyeing - ✔✔A treatment that adds color or affects color by deepening it,
making it more even, or changing it.
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