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NATURAL GREEN TOURMALINE    NATURAL COLOR     Hardness 7.5 
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12.43 cts. Green tourmaline oval cut Single 

14.4 x 13.6  mm. Depth: 10.4 mm.

Loupe clean. Enhancement: none (N) Untreated

stone PRICE  

 SOLD 

ORIGIN: Mozambique 

   ref:Tgo1243    
 
    
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Tourmaline Discovery
Hardness: 7 - 7.5
Specific Gravity: 3.0+    Visual Catalog

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Tourmaline data

Refractive Index: 1.62 - 1.68
Chemical Composition: Na(Li,Al)3Al6Si6O18(BO3)3 (OH)4, Sodium Lithium Aluminum Boro-Silicate Hydroxide
Crystal Structure: Trigonal
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