Exam (elaborations)
Gia Colored Stone final exam (1)
- Module
- Journalism 190 Test #2.
- Institution
- Journalism 190 Test #2.
Gia Colored Stone final exam (1)
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Gia Colored Stone final examA broad gem category based on chemical composition and crystal structure is a.
Assignment 1 - ANS-gem species
A carved design that projects slightly from a flat or curved surface is called a(n).
Assignment 9 - ANS-cameo
A characteristic enclosed within a gemstone is called. Assignment 3 - ANS-an inclusion.
A characteristic or irregularity confined to the surface of a polished gemstone is a(n).
Assignment 10 - ANS-blemish
A city, region, or country with a large number of gemstone manufacturers is called a.
Assignment 7 - ANS-cutting center
A commitment to reserve a portion of the resources derived from any country for the
economic development of that country is called. Assignment 7 - ANS-Beneficiation
A crystal growth habit with a bumpy
appearance similar to a bunch of grapes is called. Assignment 20 - ANS-botryoidal.
A deposit where gems are found in the rocks where they formed is called. Assignment 2
- ANS-primary
A gem colored by an element that is part of its basic chemistry is called. Assignment 4 -
ANS-idiochromatic
A gem material's host rock, which
sometimes becomes part of the finished gem, is called. Assignment 19 - ANS-matrix
A gem produced by, or derived from, a living organism is. Assignment 1 - ANS-organic
A gem's origin refers to. Assignment 7 - ANS-the geographical place where it was
mined.
A gem's price divided by its carat weight is called. Assignments 11 - ANS-per-carat price
,A general term for a break in a stone is. Assignment 10 - ANS-feather
A laboratory-created gem with essentially the same chemical composition, crystal
structure, and properties as its natural counterpart is a(n). Assignment 5 -
ANS-synthetic
A major source of black star sapphire is. Assignment 14 - ANS-Thailand
A metric carat equals. Assignment 11 - ANS-0.20 grams.
A natural material that's made up of a mass of one or more kinds of mineral crystals is
a. Assignment 1 - ANS-Rock.
A natural, inorganic substance with a characteristic chemical composition and usually
characteristic crystal structure is a(n). Assignment 1 - ANS-Mineral
A needle inclusion can be a long, thin solid crystal or a. Assignment 10 - ANS-thin
hollow tube
A number of similar cultured pearl strands bundled together is called a. Assignment 16 -
ANS-Hank
A premium price for selecting stones from a parcel is called the. Assignment 7 -
ANS-Pick price
A procedure that includes cleaning, buffing, and sometimes bleaching, done to make
cultured pearls presentable and appealing, is called. Assignment 4 - ANS-process
A quantity of stones of similar or mixed qualities, from a single mine or from various
sources, offered for sale together is called a. Assignment 7 - ANS-parcel
A quantity of stones of similar or mixed qualities, from a single mine or from various
sources, offered for sale together is called a. Assignment 7 - ANS-parcel
A regular, repeating internal arrangement of
atoms in a material is its. Assignment 1 - ANS-crystal structure
A rock must - ANS-Assignment 1- atoms and crystals
,A ruby with a low number on the GIA saturation scale would appear. Assignment 8 -
ANS-"Using GIA Terms to Describe Gemstone Color" Assignment 8
A sign of poor finish is. Assignment 9 - ANS-uneven facet symmetry.
A snakeskin structural pattern is typical of. Assignment 5 - ANS-synthetic opal.
A star sapphire's rays should be distinct, well centered, and. Assignment 14 -
ANS-reach from girdle to girdle.
A star sapphire's rays should be distinct, well centered, and. Assignment 14 -
ANS-reach from girdle to girdle.
A substance that consists of atoms of only one kind is a. Assignment 1 - ANS-chemical
element
A synthetic gem and its natural counterpart have essentially the same. Assignment 5 -
ANS-crystal structure
A trade term for hydrogrossular garnet is. Assignment 18 - ANS-Transvaal jade.
A trade term for jadeite with very fine texture. Assignment 18 - ANS-old mine
A treatment that causes the formation of small cracks that accept dye in a gem is called.
Assignment 6 - ANS-Quench crackling
A two-phase inclusion is a cavity in a gem that's typically filled with. Assignments 3 -
ANS-a liquid and a gas
A unit cell defines a mineral's. Assignment 3 - ANS-basic identity.
About half of all the jewelry in the world is sold in. Assignment 7 - ANS-United States
Adularescence is caused by. Assignment 4 - ANS-scattering of light
After bleaching out jadeite stains. Assignment 18 - ANS-wax or resin fills voids to
improve luster, transparency, and color.
After irradiation treatment, the colors of yellow and orange sapphires will. Assignment
14 - ANS-be unstable.
, After irradiation, which gem's color is stable under normal wearing conditions?
Assignment 6 - ANS-Golden beryl
Alexandrite was discovered in. Assignment 21 - ANS-1830
All doubly refractive gems have at least one singly refractive direction. Assignment 4 -
ANS-along the optic axis
All other factors being equal, how would the per-carat price of parcels of 2-ct. sapphires
compare to the per-carat price of parcels of
0.50-ct. sapphires? Assignment 11 - ANS-It would be higher
Almost all tanzanite is. Assignment 21 - ANS-heat treated
Although its own gem resources have been declining since the 1960s, Thailand remains
a major player in the gem industry due to its expertise in. Assignment 7 - ANS-treating
and cutting.
An advantage of oil fillers is that they. Assignment 15 - ANS-can be removed from the
stone and replaced.
An angular, hollow space that resembles a mineral inclusion is called a. Assignment 10
- ANS-negative crystal.
An angular, hollow space within a gem is known as a. Assignment 10 - ANS-"Inside the
Gem" assignment 10
An assembled cultured blister pearl is called a. Assignment 16 - ANS-mabé pearl.
An example of an amorphous material is. Assignment 1 - ANS-Assignment 1- atoms
and crystal
An inclusion with the most negative impact on a colored stone's clarity would be located.
Assignment 10 - ANS-under the table.
An off-center pavilion is considered a variation in. Assignment 9 - ANS-symmetry
An opal pattern with large areas of play-of-color is called. Assignment 19 - ANS-flash.
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