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RO-TISP024BY-002-331
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Natural greenish yellow sphene - 4.078 ct - fair to good clarity - good fire possibilities - rough gemstone for faceting
Certificate: RO-TISP024BY-002-331
Gem Type: Natural Titanite mineral Sphene
Weight: 4.078 Carat
Shape: Rough
Size: 10.8 x 7.7 x 6.5 mm.
Color: Slight orangey greenish yellow (video and pictures made with gemlight to accentuate clarity and possible fire if chosen right direction for faceting)
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