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Color encyclopedia of gemstones

GEMS Arem, Joel E. Color encyclopedia of gemstones. Van Nostrand Reinhold, 1977
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Gems and jewelry

GEMS Arem, Joel Gems and jewelry. Grosset & Dunlap, 1975
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Precious stones, Vol 1 & 2

GEMS Bauer, Max Precious stones, Vol 1 & 2, Dover, 1904, 1968
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Gems & jewels: fact and fable

GEMS Cavey, Christopher Gems & jewels: fact and fable. Wellfleet, 1992
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