Turquoise: Mines, Minerals and Wearable Art
by Mark P. Block
Turquoise: Mines, Minerals and Wearable Art
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Foreword |
7
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Preface |
8
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Acknowledgments |
9
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Introduction |
13
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Chapter 1: THE MINERAL |
16
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Properties |
16
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Occurrence and Association |
17
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Chapter 2: EVALUATING TURQUOISE |
23
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Grades |
23
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Other Alterations |
24
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Value |
26
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Authenticity |
28
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Chapter 3: COUNTRIES OF ORIGIN |
30
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Mining Claims |
31
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Chapter 4: MINING LOCALES |
32
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Other Turquoise Mines |
170
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Glossary |
171
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Bibliography |
173
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Index |
174
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