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MULTICOLOR TOURMALINE      NATURAL COLOR     Hardness 7.5
Online Certificate
RETURN TO POLYCHROME TOURMALINE
 

10.07 cts. Cabochon Polychrome tourmaline 

 26.6 x 11.7 Depth: 5 mm.

Moderately included. Enhancement: none (N) Untreated

stone PRICE  

USD 298.00 

ORIGIN: Madagascar

   ref:CabpolTo1007   

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.
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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