File:Citrine cabochon gemstone.JPG
Citrine_cabochon_gemstone.JPG (340 × 453 pixels, file size: 17 KB, MIME type: image/jpeg)
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Summary
| Description |
Deutsch: Citrin Schmuckstein, Cabochonschliff, oval
English: Citrine was thought to have first been used in jewelry in Greece during the 4th to 1st centuries BC.
The One Stop Gem Shop - Redcliffe, Qld, 4019Citrine is a variety of crystalline quartz that ranges in color from pale yellow to gold, dark orange, or brown. The golden color is the result of iron impurities in the crystal, and the darker varieties, called Madeira, are considered to be more valuable. Its chemical formula is SiO2. It is a relatively hard stone, with a Moh scale rating of 7, and is therefore quite durable. It has a refractive index of 1.544-1.553, a specific gravity of 2.6-2.7, and a Trigonal crystal structure. The name citrine originated from the French word citron, which means lemon. Read more about citrine at: http://ezinearticles.com/?Citrine---The-Protector-of-Positive-Energies&id=2455067 |
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| Source | Own work |
| Author | Gemstones |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| current | 11:22, 16 June 2009 | | 340 × 453 (17 KB) | Gemstones~commonswiki | {{Information |Description={{en|1=Citrine was thought to have first been used in jewelry in Greece during the 4th to 1st centuries BC. Citrine is a variety of crystalline quartz that ranges in color from pale yellow to gold, dark orange, or brown. The gol |
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