Natural brownish green sphene - 10.010 ct - rough gemstone - for faceting - unheated
The color of sphene can range from yellow to red, brown, brownish, or yellowish green to green, and black. Sphene has a high birefringence and shows doubling of facet junctions
Sphene is a gemstone with unique properties that have made it desirable in jewelry and other decorative arts. It belongs to the nesosilicate mineral group, which includes garnet, diamond, and topaz, but its chemical composition of calcium titanium silicate makes it distinct from these stones.
It is said to be the stone of hope and courage, inspiring those who possess it to stand up for their beliefs despite fear and difficulty. Sphene has been used since ancient times as an aid in healing physical ailments, emotional trauma, and spiritual blockages.
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
Inclusions : feathers
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.
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