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MULTICOLOR TOURMALINE        NATURAL COLOR        Hardness 7.5 

RETURN TO   POLYCHROME TOURMALINE

  

40.67 cts. Cabochon polychrome tourmaline 

 42.5 x 22.7 mm.

  Moderately included. Enhancement: none (N) Untreated

stone PRICE  

USD 844.00  

ORIGIN: Madagascar

ref:cabTpola 4067  

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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