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  • GIA Graduate Gemologist - GEM 220 - Colored Stones
    GIA Graduate Gemologist - GEM 220 - Colored Stones

    GIA Graduate Gemologist - GEM 220 - Colored Stones

    By: Silvan Amberg
    Assignment 1 - Introduction, Assignment 2 - Gemstone Formation & Mining, Assignment 3 - Gems and their Physical Properties...
    27
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    773
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  • GEM220 Colored Stones
    GEM220 Colored Stones

    GEM220 Colored Stones

    By: Roberto Castro
    Review
    1
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    180
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    21
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  • GEM220 Concepts
    GEM220 Concepts

    GEM220 Concepts

    By: Lina P
    Key Concepts and Terms
    1
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    227
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    7
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  • GIA
    GIA

    GIA

    By: Émilie Chun
    GEM 220 QUIZ, GEM 230 QUIZ
    2
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