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M'Passa Mine, Boko Songho District, Bouenza Department, Republic of Congo (Brazzaville)
Chalcocite
M'Passa Mine, Boko Songho District, Bouenza Department, Republic of Congo
Photo: Peter Haas
M'Passa Mine, Boko Songho District, Bouenza Department, Republic of Congo
Photo: Peter Haas
Carbonate hosted ore in the Schisto-calcareous Group of the West Congolian fold belt.
"M'passa is a village about 25km westsouthwest of Mindouli. There are several small mines around the village. The zinc copper mineralization produced some spectacular chalcocite crystals to 2-3cm in diameter and in groups up 15cm accross. I was able to collect several fine specimens in 1977 when the mines were still active." (Demetrius Pohl, http://www.mindat.org/mesg-6-234115.html )
Mineral List
| Chalcocite Galena | Germanite Pyrite | Sphalerite |
5 entries listed. 5 valid minerals.
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References
- Mining Annual Review (1985): 436.
Buffet, G., Amosse, J., Mouzita, D., & Giraud, P. (1987). Geochemistry of the M'Passa Pb-Zn deposit (Niari syncline, People's Republic of the Congo). Arguments in favor of a hydrothermal origin. Mineralium Deposita, 22(1), 64-77.
Buffet, G., Amosse, J., Mouzita, D., & Giraud, P. (1987). Geochemistry of the M'Passa Pb-Zn deposit (Niari syncline, People's Republic of the Congo). Arguments in favor of a hydrothermal origin. Mineralium Deposita, 22(1), 64-77.
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New Locality Added: Lägern (Otelfingen; Boppelsen), Limmattal, Zürich, SwitzerlandFrom Richard Muster, 19th Jun 2013 20:38:43