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O'Toole deposit, Fortaleza de Minas, Minas Gerais, Southeast Region, Brazil

Ni mine in operation, 6 km SW of Fortaleza de Minas.



References:
Brenner et al (1990) Econ Geol 85:904-920





Mineral List:
Actinolite
Arsenopyrite
Bismuth
Chalcopyrite
'Chlorite Group'
Cobaltite
Gersdorffite
Gold
Graphite
Hematite
Ilmenite
Irarsite
Kotulskite
Mackinawite
Magnetite
Marcasite
Maucherite
Melonite
Nickeline
Omeiite
Osarsite
Pentlandite
Platinum
Pyrite
Pyrite
var: Bravoite

Pyrrhotite
Rheniite
Silver
Sperrylite
Sphalerite
Talc
Titanite
Tremolite
Valleriite
Violarite


35 entries listed. 33 valid minerals.

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