Gia Colored Stone Final Exam Questions and Answers 100% Solved | Graded A+
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Gia Colored Stone
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Gia Colored Stone
Gia Colored Stone Final Exam Questions
and Answers 100% Solved | Graded A+
Which of the following is a gem variety? Assignment 1 - demantoid
A substance that consists of atoms of only one kind is a. Assignment 1 -
chemical element
Which of the following is an organic gem? Assignment 1 - amber
...
Which of the following is a gem variety? Assignment 1 - demantoid
A substance that consists of atoms of only one kind is a. Assignment 1 -
chemical element
Which of the following is an organic gem? Assignment 1 - amber
Many colored stones are mined by. Assignment 1 - independent miners
using small-scale mining methods.
Which group does almandine belong to? Assignment 1 - Garnet
Synthetic gem materials. Assignment 1 - Are not mineral
A broad gem category based on chemical composition and crystal structure
is a. Assignment 1 - gem species
A natural, inorganic substance with a characteristic chemical composition
and usually characteristic crystal structure is a(n). Assignment 1 - Mineral
The world's largest gem-consuming market is. Assignment 1 - United
States
Which of the following is amorphous? Assignment 1 - amber
,A gem produced by, or derived from, a living organism is. Assignment 1 -
organic
Most gems are. Assignment 1 - minerals
To be a gem, a mineral must be beautiful, durable, and. Assignment 1 -
rare
Media attention in the 1990s regarding its treatment reduced consumer
confidence in. Assignment 1 - emerald
A natural material that's made up of a mass of one or more kinds of mineral
crystals is a. Assignment 1 - Rock.
Myanmar's famous Mogok ruby deposits were formed by. Assignment 2 -
metamorphic processes.
Heat and pressure transform limestone into. Assignment 2 - marble
Which gem can crystallize in volcanic rock from gases released by
magma? Assignment 2 - Red beryl
Which is a deposit where gems eroded from the source rock and remained
in place nearby? Assignment 2 - Eluvial
Most gemstones form in the. Assignment 2 - continental crust
From granite, pegmatite gems get exotic elements like. Assignment 2 -
beryllium, boron, and lithium.
,Which is a key locality for hydrothermal gems? Assignment 2 - Ouro Preto,
Brazil
Which gem forms by metamorphism? Assignment 2 - Tanzanite
Emeralds are rarely found in placer deposits because they're. Assignment
2 - unable to withstand much abrasion.
Most of the gems in Tanzania's Umba River Valley are found in.
Assignment 2 - Placers deposit
A deposit where gems are found in the rocks where they formed is called.
Assignment 2 - primary
Which is a workable alluvial deposit of gem minerals with economic
potential? Assignment 2 - placers
Which type of deposit is usually the most profitable for colored stone
mining? Assignment 2 - secondary
Rocks altered by heat and pressure are. Assignment 2 - Metamorphic
Kunzite is most often found in association with. Assignment 2 - tourmaline
and beryl in pegmatite.
A two-phase inclusion is a cavity in a gem that's typically filled with.
Assignments 3 - a liquid and a gas
Which type of twinning looks as if two crystal halves are mirror images?
Assignment 3 - contact
, Many fashioned rubies have shallow proportions because they're cut from.
Assignment 3 - flattened crystals.
Which aggregate's crystals are visible only under very high magnification?
Assignment 3 - Cryptocrystalline
Crystals that grow in a flux that is highly saturated with the necessary
elements tend to be. Assignment 3 - small
Atoms in a gem that are not part of its essential chemical composition are.
Assignment 3 - trace elements
The trace elements that cause corundum's blue are. Assignment 3 - iron
and titanium.
How heavy an object is in relation to its size is called its. Assignment 3 -
Density
Which element causes red in ruby and green in emerald? Assignment 3 -
Chromium
Needles of actinolite found in emerald are classified as. Assignment 3 -
inclusions
A unit cell defines a mineral's. Assignment 3 - basic identity.
Rough spinel often occurs as. Assignment 3 - twinned crystals
Which gems are cryptocrystalline aggregates? Assignment 3 - Chalcedony
and turquoise
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