RO-SCAP025PU-002-391

Natural deep violet rough Scapolite - 9.225 ct - for faceting - good color

Certificate: RO-SCAP025PU-002-391

Gem Type: Tectosilicates - Natural Scapolite

Weight: 9.225 Carat

Shape: Rough

Size: 18.9 x 9.4 x 7.9 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