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LOOSE BI-COLOR TOURMALINE   NATURAL COLOR    Hardness 7.5 

RETURN TO »»  TOURMALINE BI COLOR

  Bi-color tourmaline gemstone, exclusive loose faceted tourmalines, Madagascar gemstones shopping

6.25 cts. Bi color tourmaline emerald cut Single 

The faces of the stone are parallel, on the contrary to the picture's effect.

11.5 x 9 mm. Depth: 7.2 mm  (Unusual tourmaline) 

  Slightly included.  Enhancement: none (N)

stone PRICE  

USD 782.00 

ORIGIN: Madagascar

ref: Tbie 625  

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    Cutting Styles
Crystal Structure: Trigonal   Ask a question
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