• (n.) A hydrous phosphate of alumina containing a little copper; calaite. It has a blue, or bluish green, color, and usually occurs in reniform masses with a botryoidal surface.
Found on
http://thinkexist.com/dictionary/meaning/turquois/
<chemical> A hydrous phosphate of alumina containing a little copper; calaite. It has a blue, or bluish green, colour, and usually occurs in reniform masses with a botryoidal surface. [Formerly written also turcois, and turkois. ... Turquoise is susceptible of a high polish, and when of a bright blue colour is much esteemed as a gem. The fine...
Found on
http://www.encyclo.co.uk/local/20973
No exact match found.
