Marcasite from Colquechaca, Colquechaca Municipality, Chayanta Province, Potosí, Bolivia
Bolivia | |
| Wilson, Wendell E. (2001) Notes From the Editors - Old Yuma mine. The Mineralogical Record, 32 (6) 426-501 |
| Arch. Mineral. Warsaw, vol. 12, pp.90-95, 1936 |
Colquechaca, Colquechaca Municipality, Chayanta Province, Potosí, Bolivia