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LOOSE RUBELLITE TOURMALINE 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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4.63cts.
Round rubellite tourmaline single |
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| Stone Price: USD 595.00
ref:Trr4613
 
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 Depth:7.1 mm. |
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RUBELLITE |
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Scale determining the purity of a stone.
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| FL |
NFL |
SI1 |
SI2 |
MI1 |
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| Flaw
less |
Near
flaw less |
Slightly
included 1 |
Slightly
included 2 |
Medium
included 1 |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| MI2 |
MI3 |
VI1 |
VI2 |
HI |
 |
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 |
 |
| Medium
included 2 |
Medium
included 3 |
Very
included 1 |
Very
included 2 |
Highly
included |
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