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SET TOURMALINE SLICE        NATURAL COLOR         Hardness 7.5

RETURN TO »» TOURMALINE SLICE

 

13.43 cts. Set Polychromatic tourmaline  Slice

15.8 x 13.4 mm. Thickness 1.9 mm.  (Real color is more pinkish than violetish)

Slightly included. Enhancement: none (N)

set PRICE   USD 175.00 

ORIGIN: Madagascar

   ref: Set Tsl1343 
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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