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Comments: Klockmannite intergrown with covellite on quartz.
Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany.
Scale: Picture size 7.5 mm.
© Thomas Witzke / Abraxas-Verlag
Klockmannite: CuSe Fischesserite: Ag3AuSe2
Comments: Pinkish-grey fischesserite (Fl) with fine-grained bluish-grey klockmannite (Kl) and grey clausthalite (Cl). Polished section from microprobe analysis in reflected light, parallel nicols.
Location: Predborice, Bohemia, Czech Republic.
Scale: Picture size 0.7 mm.
© Thomas Witzke