Natural purple rough Scapolite - 4.982 ct - for faceting - very good color

Natural purple rough Scapolite - 4.982 ct - for faceting - very good color

Certificate: RO-SCAP025PU-002-390

Gem Type: Tectosilicates - Natural Scapolite

Weight: 4.982 Carat

Shape: Rough

Size: 12.1 x 9.0 x 7.0 mm.

Color: puple

Clarity: Transparent

Luster: N/A

Treatment: unheated, untreated

Birefringence : 0.007-0.014.
Cleavage : Perfect/distinct in two directions
Crystallography : Tetragonal
Dispersion : 0.017
Hardness : 5.5-6
Refractive index : 1.531-1.600 (1.539-1.540)
Specific gravity : 2.50-2.78 (2.59)

COMMENTS:

No indications of heating - No indications of treatment

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