Exam (elaborations)
LATEST- GIA COLORED STONE ESSENTIALS QUESTIONS AND ANSWERS
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LATEST- GIA COLORED STONE ESSENTIALS QUESTIONS AND ANSWERS
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LATEST- GIA COLORED STONE ESSENTIALS QUESTIONSAND ANSWERS
COLORED STONE Correct-Any gem material other than diamond.
GEMOLOGY Correct-The study of gems.
ORGANIC Correct-Once living, or produced by a living organism (plant or animal).
MINERALS Correct-A natural, inorganic substance with a characteristic chemical
composition and usually characteristic structure.
INORGANIC Correct-Composed of, or arising from, non-living matter.
CHEMICAL COMPOSITIONS Correct-Kinds and relative quantities of atoms that make up a
material.
DURABILITY Correct-A gemstone's ability to withstand wear, heat, and chemicals.
LUSTER Correct-The appearance of a material's surface in reflected light.
, LATEST- GIA COLORED STONE ESSENTIALS QUESTIONS
AND ANSWERS
TRANSPARENCY Correct-Degree to which a material allows light to pass through it.
HARDNESS Correct-How well a gemstone resists scratches and abrasion.
TOUGHNESS Correct-How well a gemstone resists breaking, chipping, and cracking.
STABILITY Correct-How well a gemstone resists the effects of light, heat, and chemicals.
CRYSTAL STRUCTURE Correct-Regular, repeating internal arrangement of atoms in a
material.
CHEMICAL FORMULA Correct-Written description of a material's chemical makeup.
TRACE ELEMENTS Correct-Atoms in a gem that aren't part of its essential chemical
composition.
, LATEST- GIA COLORED STONE ESSENTIALS QUESTIONS
AND ANSWERS
AMORPHOUS Correct-Lacking a regular crystal structure.
SPECIES Correct-A broad gem category based on chemical composition and crystal
structure.
VARIETY Correct-A subcategory of species based on color, transparency, or phenomenon.
PHENOMENON Correct-An unusual optical effect displayed by a gem.
GROUPS Correct-A family of gems from several closely related mineral species.
NATURAL GEMS Correct-Gems produced by natural processes, without human help.
LAB-GROWN GEM Correct-A manmade (synthetic) gem with essentially the same chemical
composition, crystal structure, and properties as its natural counterpart.
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