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NATURAL GREEN TOURMALINE    NATURAL COLOR     Hardness 7.5 
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RETURN TO »» TOURMALINE GREEN
 

1.44 cts. Green tourmaline oval cut Single 

8.9 x 6.5 mm. Depth: 3.7 mm. Tone: medium-light

Very slightly included. Enhancement: none (N) Untreated

stone PRICE  

 SOLD 

ORIGIN: Afghanistan 

    ref:Tgo144    

 
   
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Tourmaline Discovery
Hardness: 7 - 7.5
Specific Gravity: 3.0+    Visual Catalog

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Tourmaline data

Refractive Index: 1.62 - 1.68
Chemical Composition: Na(Li,Al)3Al6Si6O18(BO3)3 (OH)4, Sodium Lithium Aluminum Boro-Silicate Hydroxide
Crystal Structure: Trigonal
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