GIA Colored Stone Final Exam Questions and Answers Latest Update 2024 (100% CORRECT) verified
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GIA Colored Stone
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GIA Colored Stone
Which of the following is a gem variety? Assignment 1 - Answer- demantoid
A substance that consists of atoms of only one kind is a. Assignment 1 - Answer- chemical element
Which of the following is an organic gem? Assignment 1 - Answer- amber
Many colored stones are mined by. Assignment 1 ...
GIA Colored Stone Final Exam Questions and Answers Latest
Update 2024 (100% CORRECT) verified
Which of the following is a gem variety? Assignment 1 - Answer- demantoid
A substance that consists of atoms of only one kind is a. Assignment 1 - Answer- chemical element
Which of the following is an organic gem? Assignment 1 - Answer- amber
Many colored stones are mined by. Assignment 1 - Answer- independent miners using small-scale mining
methods.
By what date had Kokichi Mikimoto begun culturing whole pearls - Answer- 1908
Synthetic gem materials - Answer- Are not minerals
which of the following is an organic gem - Answer- amber
which of the following is amorphous - Answer- amber
a natural material that's made up of a mass of one or more kinds of mineral crystals is - Answer- rock
what group does alamandine belong to - Answer- garnet
A gem produced by, or derived from, a living organism is - Answer- organic
which of the following is a gem variety - Answer- demantoid
the world's largest gem-consuming market is - Answer- the US
,a substance that consists of atoms of only one kind is a - Answer- chemical element
Media attention in the 1990s regarding its treatment reduced consumer confidence in - Answer- emerald
a natural, inorganic substance with a characteristic chemical composition and usual crystal structure is a -
Answer- mineral
most gems are - Answer- minerals
To be a gem, a mineral must be beautiful, durable, and - Answer- rare
a broad gem category based on chemical composition and crystal structure is called a - Answer- gem
species
Many colored stones are mined by - Answer- independent miners using small-scale mining methods.
Rocks altered by heat and pressure beneath Earth's surface are - Answer- metamorphic
Which group does almandine belong to? Assignment 1 - Answer- Garnet
Synthetic gem materials. Assignment 1 - Answer- Are not mineral
A broad gem category based on chemical composition and crystal structure is a. Assignment 1 - Answer-
gem species
A natural, inorganic substance with a characteristic chemical composition and usually characteristic
crystal structure is a(n). Assignment 1 - Answer- Mineral
The world's largest gem-consuming market is. Assignment 1 - Answer- United States
Which of the following is amorphous? Assignment 1 - Answer- amber
,A gem produced by, or derived from, a living organism is. Assignment 1 - Answer- organic
Most gems are. Assignment 1 - Answer- minerals
To be a gem, a mineral must be beautiful, durable, and. Assignment 1 - Answer- rare
Media attention in the 1990s regarding its treatment reduced consumer confidence in. Assignment 1 -
Answer- emerald
A natural material that's made up of a mass of one or more kinds of mineral crystals is a. Assignment 1 -
Answer- Rock.
Myanmar's famous Mogok ruby deposits were formed by. Assignment 2 - Answer- metamorphic
processes.
Which gem can crystallize in volcanic rock from gases released by magma? Assignment 2 - Answer- Red
beryl
Which is a deposit where gems eroded from the source rock and remained in place nearby? Assignment 2
- Answer- Eluvial
Most gemstones form in the. Assignment 2 - Answer- continental crust
From granite, pegmatite gems get exotic elements like. Assignment 2 - Answer- beryllium, boron, and
lithium.
Which is a key locality for hydrothermal gems? Assignment 2 - Answer- Ouro Preto, Brazil
Which gem forms by metamorphism? Assignment 2 - Answer- Tanzanite
, Emeralds are rarely found in placer deposits because they're. Assignment 2 - Answer- unable to withstand
much abrasion.
Most of the gems in Tanzania's Umba River Valley are found in. Assignment 2 - Answer- Placers deposit
A deposit where gems are found in the rocks where they formed is called. Assignment 2 - Answer-
primary
Which is a workable alluvial deposit of gem minerals with economic potential? Assignment 2 - Answer-
placers
Which type of deposit is usually the most profitable for colored stone mining? Assignment 2 - Answer-
secondary
Rocks altered by heat and pressure are. Assignment 2 - Answer- Metamorphic
Kunzite is most often found in association with. Assignment 2 - Answer- tourmaline and beryl in
pegmatite.
A two-phase inclusion is a cavity in a gem that's typically filled with. Assignments 3 - Answer- a liquid
and a gas
Which type of twinning looks as if two crystal halves are mirror images? Assignment 3 - Answer- contact
Many fashioned rubies have shallow proportions because they're cut from. Assignment 3 - Answer-
flattened crystals.
Which aggregate's crystals are visible only under very high magnification? Assignment 3 - Answer-
Cryptocrystalline
Crystals that grow in a flux that is highly saturated with the necessary elements tend to be. Assignment 3 -
Answer- small
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