Pentlandite, Pyrite, Chalcopyrite, Pyrrhotite, Norite
Tellnes Mines, Sokndal, Rogaland, Norway
The microstructure of high-grade titanium ore from Tellnes mines.
Ragged pyrite aggregate (bright yellowish), in association with chalcopyrite (yellow), pyrrhotite (spotty brownish - bottom middle-right), and fractured rim zone of pentlandite (spotty crème), in granular norite rock (dark-grey to black). Vertically reflected plane polarized light ...
© Günter Grundmann, Detmold.