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RUBELLITE
NATURAL COLOR
Hardness
7.5 |
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| Tourmaline chemical composition is (Na, Li,Ca) (Fe2, Mg, Mn, Al)3 Al6 I(OH)4 I (BO3)3ISi6O18I . |
| Crystaline system: Trigonal. |
| Occurences: In the acid magmatic rocks and associated pegmatites, limestones and schists, placers. |
| Coloured tourmalines are related to
sodolithic
pegmatites. | One distinguishes two principal types of tourmalines: the hexagonal type and the triangular one. |
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0.64 cts. Emerald cut rubellite tourmaline single |
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Inclusions seen in photos will be less visible to the naked eye. |
| Stone
Price: USD 200.00
ref:XRue064
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Depth:3.3 mm. |
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