Sphene has a refractive index of 1 843 2 110 and a birefringence of 0 100 0 192. Sphene s magnificent fire unique color shades strong pleochroism adamantine diamond like luster and double refraction make it ideal for earrings and pendants that catch the light and show its sparkling qualities. The dispersion of sphene exceeds even that of diamond. 5 out of 5 stars 73 73 reviews 55 00. New deposits have increased market quantities.
Its high birefringence often results in visible doubling of facets within the stone meaning there looks to be a fuzziness inside the gem. It s a 5 to 5 5 on the mohs scale making it softer than other more well known gems like sapphire ruby and even garnet. While mineralogists officially use the term titanite to refer to this stone many gemologists use the term sphene. It is a minor ore of titanium and a minor gemstone known as sphene physical properties of titanite titanite s diagnostic properties are its crystal habit color and luster. Sphene also known as titanite is a brilliant yellowish green green or brown gemstone of high luster unique color shades and with brilliant cut an intensive fire that can compete with diamond.
However the relatively low hardness of sphene inhibits its use as a mainstream gemstone. Sphene gemstone sphene cut stone sphene stone titanite sphene gemstone 1 10 cts 06 06 03 mm gemsmineralsparadise. Sphene is the gemstone name of the mineral titanite. The rare collector s stone sphene is a brilliant transparent yellowish green or green with a high luster and pronounced fire. What are some of the properties of sphene gemstones.
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Favorite add to fire chrome sphene loose gemstone 1 15 carats gemstonesparadise. Titanite is a rare titanium mineral that occurs as an accessory mineral in granitic and calcium rich metamorphic rocks. Sphene or titanite belongs to the titanite mineral group as the titanium rich ti member. It s the only member of this group commonly used as a gemstone. Sphene is known for its exceptional dispersion resulting in gemstones that show brilliant fire.Sphene is known for its exceptional dispersion resulting in gemstones that show brilliant fire. Favorite add to fire chrome sphene loose gemstone 1 15 carats gemstonesparadise. However the relatively low hardness of sphene inhibits its use as a mainstream gemstone. Its high birefringence often results in visible doubling of facets within the stone meaning there looks to be a fuzziness inside the gem. Sphene has a refractive index of 1 843 2 110 and a birefringence of 0 100 0 192.
