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GIA Colored Stones 2024/2025 update/GIA Colored Stone Final Exam Questions And Answers/COMPREHENSIVE FREQUENTLY TESTED QUESTIONS AND VERIFIED SOLUTIONS/ GET IT 100% ACCURATE
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GIA Colored Stones 2024/2025 update
Institution
GIA Colored Stones 2024/2025 Update
GIA Colored Stones 2024/2025 update/GIA Colored Stone Final Exam Questions And Answers/COMPREHENSIVE FREQUENTLY TESTED QUESTIONS AND VERIFIED SOLUTIONS/ GET IT 100% ACCURATE
10/21/24, 2:21 PM GIA Colored Stones 2024/2025 update/GIA Colored Stone Final Exam Questions And Answers/COMPREHENSIVE FREQUE…
GIA Colored Stones 2024/2025 update/GIA
Colored Stone Final Exam Questions And
Answers/COMPREHENSIVE FREQUENTLY
TESTED QUESTIONS AND VERIFIED
SOLUTIONS/ GET IT 100% ACCURATE
Terms in this set (684)
A natural, inorganic substance with a characteristic
Mineral chemical composition and usually characteristic
structure.
A cutting style that combines brilliant-cut and step
Mixed cut
cut facets.
Tiny nicks and pits caused by wear and damage to a
Abrasions
gem's facet edges or culet.
A pattern of dark vertical lines or bands shown by
Absorption spectrum
certain gems when viewed through a spectroscope.
The cloudy bluish white light in a moonstone,
Adularescence
caused by scattering of light.
Chalcedony with a curved or angular bands or
Agate
layers that differ in color and transparency .
Aggregate A mass of tiny, randomly oriented crystals.
Common name for the Pinctada fucata oyster and
Akoya
the natural or cultured pearls it produces.
A gem colored by trace elements in its crystal
Allochromatic
structure.
A deposit where gems are eroded from their source
Alluvial deposit rock, then transported away from their source and
further concentrated.
, 10/21/24, 2:21 PM GIA Colored Stones 2024/2025 update/GIA Colored Stone Final Exam Questions And Answers/COMPREHENSIVE FREQUE…
Amorphous Lacking a regular crystal structure.
A crystalized form of calcium carbonate found in
Aragonite
nacre.
Two or more separate pieces of material joined to
Assembled stone
form a unit.
Crossing of chatoyant bands, creating a star in the
Asterism
dome of cabochon.
Atom The basic structural unit of all matter.
A glittery effect caused by light reflecting from
Aventurescence
small, flat inclusions within a gemstone.
An opal's bodycolor, independent of its play-of-
Background color
color.
A bead used as the core of a cultured pearl, usually
Bead nucleus
made from a freshwater mussel shell.
A treatment that uses chemicals to lighten or
Bleaching
remove color.
Characteristic or irregularity confined to the surface
Blemish
of a polished gemstone.
Trade term for a highly prized, vivid blue
Blue Sheen
adularescence displayed by the finest moonstone.
A gemstone's basic color, determined by its
Bodycolor
selective absorption of light.
A crystal growth habit with a bumpy appearance
Botryoidal
similar to a bunch of grapes.
Boulder opal Thin layers of precious opal, cut to include matrix.
A cylindrical synthetic crystal produced by the
Boule
flame-fusion process.
Light that eventually returns to the eye after
Brilliance entering a gem through the crown, reflecting off its
pavilion facets, and exiting back through the crown.
Cutting style with triangular or kite-shaped facets
Brilliant cut
that radiate from the center toward girdle.
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