Gemmology
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The Spectroscope and Gemmology
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Beginner's Guide to Gemmology
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Practical Gemmology - A Study of the Identification of Gem-Stones, Pearls and Ornamental Minerals
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Practical Gemmology
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Modern Gemmology: Emerald
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Practical Gemmology; A study of the identification of gem-stones, pearls and ornamental minerals [4th edition]
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