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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Color element - malachite
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copper
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430
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Color element - sugalite
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manganese
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458
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Describe Kenyan rubies
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high chromium, high fluorescence
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500
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Primary mining (1) iolite
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Sri Lanka
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570
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mining (1) yellow chrysoberyl
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Orissa India
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584
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Color element of synthetic chrysoberyl
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vanadium
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598
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color element - orange topaz
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chromium and color centers
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612
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primary treatment for morganite
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almost always heat treated, undetectable; stable and won't fade
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640
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top minine for aquamarine
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Brazile
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682
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What is the crystal habit of labradorite?
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triclinic
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752
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color element in green and blue tourmaline
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iron and titanium
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822
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Primary mining rhodolite?
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east africa
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962
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color elements hessonite
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iron and manganese
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976
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what kind of garnet is a color change garnet?
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pyrope-spessarite garnet
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1018
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color elements for sphene
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cerium and yttrium cause yellowih to yellowish green; chromium causes chrome sphene green
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1130
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Describe Zambian emerald
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Zambia - discovered 1931, no production until 1967, irregular shaped, darker in tone, more bluish than Columbia, lack vivid color, fewer fractures, 5% top quality; 80% commercial
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1158
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what is required for carnelian to turn orange red when heated?
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iron |
1438 |
