Exotic Gems Volume 1
Table of Contents
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Acknowledgments
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7
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1. Exotic Gems
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9
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2. Price Factors in a Nutshell
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15
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Price Factors Explained
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15
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Color
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15
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Clarity
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16
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Transparency
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21
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Shape
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21
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Gemstone Terms Defined
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23
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Cutting Style
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26
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Cut Quality
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26
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Brilliance
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26
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Carat Weight
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29
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Treatment Status
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29
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Distinctness of Phenomena
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29
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Colored Gem Pricing
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32
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3. Gem Treatments
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33
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4. Gemstone Identification Terminology
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37
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5. Tanzanite
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43
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Other Zoisites and Their Geographical Sources
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43
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What is Tanzanite?
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45
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Tanzanite Treatments
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49
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Tanzanite Pleochroism
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52
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Metaphysical Properties of Tanzanite and Zoisite
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55
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Identifying Characteristics of Tanzanite
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58
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How Lighting Affects Tanzanite Color
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63
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Tanzanite Price Factors
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65
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Tanzanite Care
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69
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6. Zultanite (Color-Change Diaspore)
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73
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Gemological Properties of Zultanite (Color-Change Diaspore)
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81
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7. Ammolite
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83
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Where is Ammolite Found?
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85
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Ammolite Price Factors
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85
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Gemological Properties of Ammolite
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89
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Ammolite Care
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89
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Metaphysical Properties of Ammonite and Ammolite
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91
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8. Rhodochrosite
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93
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Spiritual and Healing Properties of Rhodochrosite
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96
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Identifying Rhodochrosite
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98
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9. Feldspar Group
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99
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10. Sunstone
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103
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What is Sunstone?
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103
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Geographic Sources of Sunstone
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107
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Identifying Sunstone
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108
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Metaphysical Properties of Sunstone
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110
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Production of Oregon Sunstone
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110
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Sunstone Price Factors
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112
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11. Moonstone
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115
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What is Moonstone?
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117
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Geographic Sources of Moonstone
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119
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Spiritual and Healing Properties of Moonstone
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123
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Judging Moonstone Quality
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123
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Caring for Moonstone
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126
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12. Other Feldspars
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127
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Labradorite (Labradorescent Variety)
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127
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Yellow or Golden Labradorite
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130
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Andesine
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133
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Amazonite
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134
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Orthoclase
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138
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Oligoclase
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138
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Bytownite
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138
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13. Choosing an Appraiser
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141
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How to find a Qualified Independent Appraiser
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142
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Qualifications to Look for
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144
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Appraisal Fees
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145
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What does an Insurance Appraisal Include?
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146
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Bibliography
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148
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Index
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151
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