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  SET TOURMALINE SLICE          NATURAL COLOR            Hardness 7.5

RETURN TO Set tourmaline slice

 

20.71 cts. Set Polychrome tourmaline  Slice

17.7 x 17 mm. Thickness 2.7 to 1.9 mm.

Moderately included. Enhancement: none (N)

pair PRICE 3pcs   USD 188.00 

ORIGIN: Madagascar

  ref: SetTsL2071 

All of our tourmalines slices are polished on both sides.

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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