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  TOURMALINE SLICE          NATURAL COLOR            Hardness 7.5

RETURN TO Set tourmaline slice

 129.07 cts. Set polychrome

 tourmaline  Slice

42.2 x 30.8 mm.

Moderately included.  Enhancement: none (N)

Set PRICE  (4pcs.)

 SOLD 

ORIGIN: Madagascar

ref:4pcs. set Tsl 12907ct

   set(4 pcs.): 129.07ct  

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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