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  TOURMALINE SLICE          NATURAL COLOR            Hardness 7.5

RETURN TO »» Set tourmaline slice

 

112.55 cts. Set Polychromatic tourmaline  Slice

33.7 x 22.1 mm. Thickness 3 mm. & 2.3 mm.

Slightly included. Enhancement: none (N)

set PRICE  (6 pcs)

USD 1240.00 

ORIGIN: Madagascar

  ref: Set Tsl11255 
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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