Sphene Deep Orangish Brown 6.50 Cts 18389 - Rare Collectors Gem

Sphene Deep Orangish Brown 6.50 Cts 18389 - Rare Collectors Gem

  • $290.00

Carats 6.50
Size 11.9 x 11.9 x 6.6mm
Color Orangish Brown
Clarity VSI
Shape Round
Treatment None
Origin Sri Lanka
Location Colombo,Sri Lanka
Price $ 290.00
100% Natural - Not treated in any way.
Rare Colectors Gem.
Suitable for Museums,Institutions and Students of Gemology.
Large Sizes are Extremely Rare.
Among the Rarest of gemstones.

Refractive Index: (1.885-1.990,)-(1.915-2.050)
Hardness: 5.5
Chemical Comp: CaTiSiO5
Density: 3.52-3.54
Crystal Group: Monoclinic

Sphene is a rare collectors gem with high R.I. and excellent luster. Comes mostly a mix of Red and Green. A well cut sphene could display a multicolor effect with high brilliance.Sphene is a very rare brilliant yellowish-green, green, orange or brown gemstone with a high luster, also known as "titanite" due to its titanium content. The name "sphene" comes from the Greek word, "sphen", meaning "wedge", which alludes to the formation of its crystals.