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TOURMALINE               NATURAL COLOR                    Hardness 7.5 



114 grms.  Tourmaline crystal on quartz Single 

 78.9 x 52 x 38 mm. Size of individual crystal: 46.3 x 11.4 x 18 mm (Transparent) rubellite color

( Externally undamaged ). NATURAL SHAPE  Enhancement: none (N)

stone PRICE  USD  700.00 

ORIGIN: Madagascar




Hardness: 7 - 7.5
Specific Gravity: 3.0+
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   Gem-O-Scope
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