RO-TISP024BG-002-194

Natural brownish green sphene - 10.010 ct - rough gemstone - for faceting - unheated

Certificate: RO-TISP024BG-002-194

Gem Type: Natural Titanite mineral Sphene

Weight: 10.010 Carat

Shape: Rough

Size: 17.1 x 12.0 x 6.3 mm.

Color: brownish green

Clarity: Transparent

Luster: N/A

Treatment: unheated, untreated

Birefringence : 0.100-0.192.
Cleavage : Distinct 1 direction
Crystallography : Monoclinic
Dispersion : 0.051 (strong)
Hardness : 5- 5.5
Refractive index : 1.843-2.110
Specific gravity : 3.45-3.55

COMMENTS :

No indications of heating - No indications of treatment
fluorescence under ultraviolet light.