Exam (elaborations)
GIA COLORED STONES ASSIGNMENT 5 QUESTIONS AND ANSWERS
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GIA COLORED STONES ASSIGNMENT 5 QUESTIONS AND ANSWERS
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Name: Score:41 Multiple choice questions
Definition 1 of 41
The hydrothermal growth process is the only method used to produce which synthetic gem?
ceramic
quartz
bis-gma
garnet
Definition 2 of 41
A laboratory creation with essentially the same chemical composition, crystal structure, and
properties as its natural counterpart.
organic gem
synthetic opal
imitation gem
synthetic gem
Definition 3 of 41
What process can synthesize gems that closely resemble natural gems?
flux process
sales process
validation rule
solution process
,Definition 4 of 41
Synthetic opal is grown using microscopic silica spheres that are produced by...
temperature
precipitation
condensation
transpiration
Definition 5 of 41
A snakeskin structural pattern is typical of...
synthetic gem
imitation lapis lazuli
synthetic opal
hydrothermal synthetic quartz
Definition 6 of 41
Knowing whether a gem is ____________ or _____________ is crucial when buying or selling colored
stones.
shiny, dull
expensive, cheap
large, small
natural, synthetic
,Definition 7 of 41
Which process involves heating finely ground powder, sometimes under pressure, to produce
a fine-grained solid material?
floating zone
ceramic
metal
polymer
Definition 8 of 41
Low cost and high volume characterize which process?
flux growth
pulling
flame fusion
melt, solution
Definition 9 of 41
Most synthetic gem crystals are produced by these two processes...
flame fusion
precipitation
melt, solution
melt process
Definition 10 of 41
A synthetic-crystal growth method that starts without a seed crystal.
precipitation
solution
flame fusion
spontaneous nucleation
, Definition 11 of 41
Synthetic turquoise is most likely produced by which process?
metal
ceramic
synthetic
polymer
Definition 12 of 41
A synthetic-crystal growth method that used cooling pipes around an interior of melted
chemical ingredients.
pulling
skull melt
flame fusion
flux growth
Definition 13 of 41
Which synthetic process developed rapidly due to laser research in the 1960s?
pulling
cutting
stabilizing
flame fusion
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