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  TOURMALINE  CRYSTAL   NATURAL COLOR     Hardness 7.5  

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 14.20 cts. Liddicoatite Tourmaline crystal Single 

 14.9 x 14.4 mm. (Macle of tourmalines)

  Enhancement: none (N)

stone PRICE  USD 57.00 ON HOLD

ORIGIN: Madagascar

ref:Tr1420 

 
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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