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MULTICOLOR TOURMALINE        NATURAL COLOR        Hardness 7.5 

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15.05 cts.Cab. polychromatic tourmaline 

 24.5 x 18.8 mm. For nautical jewel. ( sail shape )

 Lightly included. Enhancement: none (N)

stone PRICE  

 SOLD 

ref:cabTpola 1505  ORIGIN: Madagascar

      

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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