Colored Stone - ANSWER-Any gem material other than diamond
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Gemology - ANSWER-The study of gems b b b b b
Organic - ANSWER-Once living, or produced by a living organism (plant or animal)
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Mineral - ANSWER-A natural, inorganic substance with a characteristic chemical
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composition and usually a characteristic structure
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Inorganic - ANSWER-Composed of, or arising from, non-living matter
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Chemical Composition - ANSWER-Kinds and relative quantities of atoms that make up a
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material
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Durability - ANSWER-A gemstones ability to withstand wear, heat, and chemicals
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Luster - ANSWER-The appearance of a materials surface in reflected light
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Transparency - ANSWER-Degree to which a material allows light to pass through it
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Hardness - ANSWER-How well a gemstone resists scratches and abrasion
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Toughness - ANSWER-How well a gemstone resists breaking, chipping, and cracking
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Stability - ANSWER-How well a gemstone resists the effects of light, heat, and chemicals
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Federal Trade Commission (FTC) - ANSWER-A US government agency that issues
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guidelines for the jewelry trade
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crystal structure - ANSWER-Regular, repeating internal arrangement of atoms in a material
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chemical formula - ANSWER-Written description of a materials chemical make-up
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, Trace Elements - ANSWER-Atoms in a gem that arent part of its essential chemical
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composition
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Amorphous - ANSWER-Lacking a regular crystal structure b b b b b b
Gem Species - ANSWER-A broad gem category based on chemical composition and
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crystal structure
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Gem Variety - ANSWER-A subcategory of species: based on color, transparency or
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phenomenom
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phenomenon - ANSWER-An unusual optical effect displayed by a gem b b b b b b b b b
Group - ANSWER-A family of gems from several closely related mineral species
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Natural Gems - ANSWER-Gems produced by natural processes, without human help
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Synthetic Gems - ANSWER-Lab creations with essentially the same chemical composition,
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crystal structure and properties as its natural counter part
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Gems that come from plants and animals are called - ANSWER-Organics
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All minerals are - ANSWER-Inorganic
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A gem that is not easily affected by light, chemicals, or heat has good - ANSWER-Stability
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The types and relative quantities of the atoms in a mineral make up its - ANSWER-Chemical
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Composition
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A gem's resistance to chipping, breaking, and cracking is called - ANSWER-Toughness
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The appearance of a material's surface in reflected light is called - ANSWER-Luster
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All members of a gemological species have essentially the same - ANSWER-Chemical
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Composition
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Minerals that do not have a regular crystal structure are - ANSWER-Amorphous
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The regular, repeating internal arrangement of atoms in a material is called - ANSWER-
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Crystal Structure b
Which of the following terms should you use in a sales presentation to describe a manmade
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emerald? - ANSWER-Synthetic Emerald
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No light getting through a gemstone means it's - ANSWER-Opaque
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