Sorry but this item is currently unavailable.
Please check back at a later stage.
|Product Type:||Single Stone||Product Group:||Gemstones|
|Primary Stone / Sphene (Titanite)|
|Gemstone Count:||1||ct Weight:||2.92|
|Gemstone Shape:||Oval||Cut:||Modified Brilliant cut|
|Primary Color:||yellowish green||Color:||Green|
|Treatment:||No Treatment||Country of Origin:||Madagascar|
|Composition:||Natural||Clarity Type||Type 2 (Slightly included)|
|Clarity:||Moderately included||Dimension Width:||7.0|
Sphene is a rare collector stone with an unusually high refractive index and and a hardness of 5 -5.5. Because of it's high dispersion and refractive index, a well cut sphene can display stunning brilliance. This gemstone features "fire" phenomena, - the special effect due to dispersion and refers to the ability of the gemstone to draw light apart into its constituent colors. This works just like the glass prism that unfolds sunlight into the rainbow by refraction.
Sphene’s name comes from the Greek word which litereally mean wedge-like shape of its crystals. This unique gem species is a silicate of calcium and titanium. The rare earth elements cerium and yttrium are also often present in the crystal structure, and produce the yellow to yellowish green body colors. If substantial amount of chromium present in the stone, it will cause the intense green of chrome sphene.