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