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GREEN TOURMALINE                        Hardness 7.5 
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RETURN TO »» TOURMALINE GREEN
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 8.93 cts. Green tourmaline oval Single 

 14.2 x 10.9 mm. depth: 8.7 mm.

  Loupe clean. Tone scale: medium to medium-light. This stone has an obviously bluish Green color under daylight, and a more greenish color under incandescent light.

stone PRICE  

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ORIGIN: Zambia 

ref:Tgo893      
 
   
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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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