Sphalerite from Dos de Mayo Province, Huánuco Department, Peru
Peru | |
| Hyrsl & Rosales (2003) Mineralogical Record, 34, 241-254. |
Berry, E. W and J. T. Singewald Jr. (1922) The Geology and Paleontology of the Huancavelica Mercury District. John Hopkins University Studies in Geology No. 2 |