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Gemstone: Quiz

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Question 1: Gems prices can fluctuate heavily (such as those of ________ over the years) or can be quite stable (such as those of diamonds).
ChrysoberylSapphireTanzaniteTourmaline

Question 2: For example, ________ is a synthetic diamond simulant composed of zirconium oxide.
GarnetCubic zirconiaGoldCopper

Question 3: [1] However certain rocks, (such as lapis-lazuli) and organic materials (such as ________ or jet) are not minerals, but are still used for jewelry, and are therefore often considered to be gemstones as well.
SilverGoldCopperAmber

Question 4: Gems are characterized in terms of ________, dispersion, specific gravity, hardness, cleavage, fracture, and luster.
Refractive indexLightMaxwell's equationsMetamaterial

Question 5: For example, diamonds, ruby, sapphires and ________ have been manufactured in labs to possess identical chemical and physical characteristics to the naturally occurring variety.
ChrysoberylTourmalineEmeraldTopaz

Question 6: ________ (green), aquamarine (blue), bixbite (red), goshenite (colorless), heliodor (yellow), and morganite (pink) are all varieties of the mineral species beryl.
SapphireEmeraldTourmalineRuby

Question 7: The traditional classification in the West, which goes back to the ________, begins with a distinction between precious and semi-precious stones; similar distinctions are made in other cultures.
Attic GreekAeolic GreekDoric GreekAncient Greek

Question 8: In modern usage the precious stones are ________, ruby, emerald and sapphire, with all other gemstones being semi-precious.
PalladiumGoldDiamondGarnet

Question 9: The two main classifications are stones cut as smooth, dome shaped stones called cabochons, and stones which are cut with a ________ by polishing small flat windows called facets at regular intervals at exact angles.
Diamond cutDiamondFaceting machineDiamond (gemstone)

Question 10: A gemstone or gem (also called a precious or semi-precious stone, or jewel) is a piece of attractive ________, which—when cut and polished—is used to make jewelry or other adornments.
CarbonSolidMineralCalcium







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