Friday, November 11, 2011

Gemstone of the Week: Kyanite

Kyanite is a gorgeous stone that is often blue, but can also be white, grey, or green.  It is a polymorphic stone, which means it has the same chemical structure as another stone, yet with a different crystalline structure. In the case of Kyanite, it shares the same chemical structure as Sillimanite and Andalusite. It ranges from transparent to translucent and actually has two different hardness on the same crystal face.  If scratched length-wise, Kyanite has a hardness of 4.5, but if scratched width-wise it is a 6.5.    Some of the main locations where  this stone can be found are: Brazil, Switzerland, Russia, Serbia, India, Kenya, and within the US is found in Georgia and North Carolina.