RO-TISP024BY-002-311

Natural brownish yellow sphene - 5.718 ct - rough gemstone - for faceting or rough gemstone jewelry

Certificate: RO-TISP024BY-002-311

Gem Type: Natural Titanite mineral Sphene

Weight: 5.718 Carat

Shape: Rough

Size: 12.3 x 9.2 x 5.9 mm.

Color: Brownish yellow

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
Inclusions : feathers
Refractive index : 1.843-2.110
Specific gravity : 3.45-3.55

COMMENTS :

No indications of heating - No indications of treatment