Minerals and Metals in Ancient India v2.c45.s3.12

v2.c45.s3.12

Vimala also represented pyrite-group minerals and sulphides. There were hema and tāra varieties as in mākṣika, and these were probably the same as chalcopyrite and pyrite. A third variety kāmsya vimala has been identified as arsenopyrite. Another particular variety, most probably galena, was described (2.96-2.102) as ‘cubic in shape, having angles and facets, brilliant, reducible by borax and charcoal to yield sīsaka-type metal’: