Gemstones
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====Emerald==== | ====Emerald==== | ||
====Heliodore==== | ====Heliodore==== | ||
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===Chalcedony=== | ===Chalcedony=== | ||
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*Iris Agate | *Iris Agate | ||
*Landscape Agate | *Landscape Agate | ||
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====Aventurine==== | ====Aventurine==== | ||
====Black Chalcedony / Black Onyx==== | ====Black Chalcedony / Black Onyx==== | ||
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====Chrysoprase==== | ====Chrysoprase==== | ||
====Heliotrope ==== | ====Heliotrope ==== | ||
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===Chrysocolla === | ===Chrysocolla === | ||
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===Chrysoberyl=== | ===Chrysoberyl=== | ||
====Alexandrite==== | ====Alexandrite==== | ||
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====Cat's Eye==== | ====Cat's Eye==== | ||
===Cordierite=== | ===Cordierite=== | ||
====Iolite==== | ====Iolite==== | ||
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===Diamond=== | ===Diamond=== | ||
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===Diopside=== | ===Diopside=== | ||
====Chrome Diopside==== | ====Chrome Diopside==== | ||
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===Fluorite === | ===Fluorite === | ||
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====Almandite==== | ====Almandite==== | ||
* Demantoid | * Demantoid | ||
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====Andratite==== | ====Andratite==== | ||
====Grossularite==== | ====Grossularite==== | ||
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====Pyrope==== | ====Pyrope==== | ||
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====Spessartine==== | ====Spessartine==== | ||
====Uvarovite==== | ====Uvarovite==== | ||
===Grossularite=== | ===Grossularite=== | ||
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===Hematite=== | ===Hematite=== | ||
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===Organic=== | ===Organic=== | ||
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Although found in the earth Amber is was produced by living organisms and is not considered a mineral, instead being classified as a mineraloid. | Although found in the earth Amber is was produced by living organisms and is not considered a mineral, instead being classified as a mineraloid. | ||
====Corel==== | ====Corel==== | ||
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====Jet==== | ====Jet==== | ||
Although found in the earth Jet is was produced by living organisms and is not considered a mineral, instead being classified as a mineraloid. | Although found in the earth Jet is was produced by living organisms and is not considered a mineral, instead being classified as a mineraloid. | ||
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===Quartz=== | ===Quartz=== | ||
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====Ametrine==== | ====Ametrine==== | ||
====Citrine==== | ====Citrine==== | ||
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| − | === | + | ===Rocks=== |
| − | + | ====Lapis Lazuli==== | |
| − | === | + | Lapis lazuli is a mixture of minerals lazurite, calcite and sometimes pyrite and is classified as a rock. In the jewelry industry it is often referred to simply as 'lapis'. |
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===Spodumene=== | ===Spodumene=== | ||
====Hiddenite==== | ====Hiddenite==== | ||
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==History== | ==History== | ||
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==Treatments== | ==Treatments== | ||
| − | Treatments developed to raise | + | Treatments developed to raise apperent value of stones. |
[[Category:Gemology]] | [[Category:Gemology]] | ||