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| LOOSE
PINK
TOURMALINE NATURAL COLOR
Hardness
7.5 |
 |
| 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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3.65 cts. Free
form pink
tourmaline single |
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 |
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x |
Pieces: |
 |
1
Tourmaline |
x |
x |
Type: |
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100%
Natural |
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Color: |
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Pink |
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Shape: |
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Free
form |
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Weight: |
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3.65 Carats |
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Size: |
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12.7
x 8.3 mm. |
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Clarity: |
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FL |
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Luster: |
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Excellent |
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Treatment: |
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None
(N) |
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Origin: |
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Madagascar |
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| We
use a microscopic photography |
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Refr.
Index: |
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1.62-1.64 |
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Hardness |
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7.5 |
| system.
The actual gemstone is smaller than
the images shown. |
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Depth:6.3 mm. |
| Stone
Price: USD 292.00
ref:TPa365
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PINK TOURMALINE |
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