Examples from the Web for boracite
The sanjak is rich in mineral wealth; silver mines are worked at Balia and boracite mines at Susurlu.
It may also be obtained by the decomposition of boracite with hot hydrochloric acid.
Various explanations have been offered to account for these “optical anomalies” of boracite.
Tetrahedrite, blende, diamond, boracite and pharmacosiderite are substances which crystallize in this class.