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  TOURMALINE SLICE          NATURAL COLOR            Hardness 7.5

RETURN TO »» Set tourmaline slice

  

84 gr. Set polychromatic tourmaline  Slice

76 x 53.2 mm.  This stone was found in alluvium.

Moderately included.  Enhancement: none (N)

Set PRICE  (3pcs.)

 SOLD 

ORIGIN: Madagascar

ref:4pcs. Tsl set84gr

   set(3 pcs.): 84gr.  

Hardness: 7 - 7.5

Growth zoning in a tourmaline crystal.

Specific Gravity: 3.0+
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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