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LOOSE GREEN TOURMALINE      NATURAL COLOR       Hardness 7.5 
Online Certificate
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 15.83 cts. Green tourmaline emerald cut faceted single

 15.1 x 13 mm. Depth 10.3 mm. tone scale is medium-dark to dark.

  loupe clean. Enhancement: none (N)

stone PRICE 

 SOLD 

ORIGIN: Madagascar 

  ref:Tge 1583   
This is a virtual certificate compiled from the lab data for the gemstone being examined. Clarity is based on magnification
under a 10X corrected loupe. All gemology performed by GGGems. Jean & Alain Darbellay guaranteeing that this stone  
                        is 100% natural. Prices and availability are subject to change without notice.
 
    
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Tourmaline Discovery
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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