My watch list  

Smoky quartz


Smoky quartz or Smokey quartz, also known as Cairngorm or Cairngormstone is a brown to black variety of quartz caused through the natural (or artificial) irradiation of aluminium-containing rock crystal. A very dark brown to black opaque variety is known as morion.

See also


  • Holden, Edward (1925). "The Cause of Color in Smoky Quartz and Amythyst" in American Mineralologist, vol. 9, pp. 203-252
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Smoky_quartz". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE