Amethyst from Castrovirreyna mining district, Castrovirreyna District, Castrovirreyna Province, Huancavelica, Peru
Peru | |
| Lewis Jr, R. W. (1964). The geology, mineralogy and paragenesis of the Castrovirreyna lead-zinc-silver deposits, Peru (OFR No. 64-103). US Geological Survey,. |
Lewis Jr, R. W. (1964). The geology, mineralogy and paragenesis of the Castrovirreyna lead-zinc-silver deposits, Peru (OFR No. 64-103). US Geological Survey,. |