Friday, March 9, 2012
Gemstone of the Week: Sphene (Titanite)
Sphene is calcium titanium silicate and is a very beautiful stone. Also known as Titanite, Sphene is generally either yellow, green, orange, or brown. Part of this stones beauty is that it has a diamond like luster and a very high dispersion. In fact, its colour dispersion is even higher than that of a diamond. Sphene can be brittle, so most stones are cut for collectors, although I have seen it used in jewelry. While the previously mentioned colours are what it normally is found as, Sphene can also be black, pink, red, blue, or colourless as a result of the number of other elements can be be substituted in its structure. Sphene's mos notable locations are: Austria, Italy, Madagascar, Brazil, Mexico, Norway, Canada, Switzerland, Germany, Russia, Pakistan, and a few locations in the U.S. The value of Sphene varies significantly depending on the size, colour, and quality of the stone, but for the normal colours there is a value chart on Gemval.com that you can consult: Sphene value chart.