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

10.54 cts.Cabochon polychromatic tourmaline 

 21 x 13.5 mm. Depth: 4.3 mm.

 Moderately included. Enhancement: none (N) Untreated

stone PRICE  

USD 273.00 

ORIGIN: Madagascar

   ref:cabTpola 1054   

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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