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GREEN TOURMALINE         NATURAL COLOR          Hardness 7.5 



37.01 cts. cab. Green tourmaline single 

30.9 x 11.7 x 11.6 mm.

Shugar loaf, the shape is rather vertical, but good medium-dark color and tolerable inclusions 

Slightly included. Enhancement: none (N)

stone PRICE 

USD 1814.00 

ORIGIN: Madagascar

   ref:cabTgo 3701  

Hardness: 7 - 7.5
Specific Gravity: 3.0+   Visual Catalog
Refractive Index: 1.62 - 1.68 Tourmaline data
Chemical Composition: Na(Li,Al)3Al6Si6O18(BO3)3 (OH)4, Sodium Lithium Aluminum Boro-Silicate Hydroxide   Ask a question
Crystal Structure: Trigonal
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