Product details
100% Natural – Not treated in any way.
Beautiful Center-stone for an engagement Ring.
Will make a Gorgeous Ring or Pendent accented with Diamonds.
Gem with High Lustre and Good Clarity.
Large Sizes are Extremely Rare!
A Gem of Lasting Beauty.
Chemical Formula CaTiSiO5 – Mineral Class : Titanite
Color – Green, Yellow, Orange, Brown
Hardness – 5-5.5
Crystal System – Monoclinic
Refractive Index – 1.84 – 2.11 SG – 3.4-3.6
Transparency – Transparent Double refraction – 100 – .192
Luster – Adamantine Cleavage – 2,2
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.
Sphene occurs as an accessory mineral in igneous rocks: in schists, gneisses and other metamorphic rocks,and is also found as a detrital mineral in some sedimentary deposits.
Titanite is an important collector’s mineral, with well-formed crystals and transparent varieties being particularly desirable.it is also used as a minor gemstone. Titanite is industrially important as a source of titanium dioxide , (TiO2) , Which is used in pigments
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