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SET TOURMALINE     NATURAL COLOR      Hardness 7.5 

RETURN TO »»  SET TOURMALINE CABOCHON

9.53 cts. cab. Green Tourmaline single &  7.56 cts. cab. Rubellite  single

To gr. 21.5 x 10 / Ru.15.8 x 11.3 mm.

Moderately included. Enhancement: none (N)

stone PRICE  

USD 1025.00 

ORIGIN: Madagascar

  ref:setTO1709  

Tourmaline:
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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