Figure 2: Reflected light photomicrograph of pyrrhotite (pinkish brown), pentlandite (creme white) and chalcopyrite (sulfur yellow) with a PGE-bismuthotelluride (white)
Figure 2: Reflected light photomicrograph of pyrrhotite (pinkish brown), pentlandite (creme white) and chalcopyrite (sulfur yellow) with a PGE-bismuthotelluride (white)
Source: BGR