mooihoekite

OBS: Formule chimique : Cu[indice 9]Fe[indice 9]S[indice 16]

CONT: Under reflected light mooihoekite and haycockite have a color similar to that of chalcopyrite in a freshly polished section. Mooihoekite tarnishes, however, on exposure to air through different hues of pinkish brown to a heavy purplish color but at a rate slower than that reported for talnakhite. ... Mooihoekite is weakly anisotropic, whereas haycockite is weakly to moderately anisotropic.
OBS: Chemical formula: Cu[subscript 9]Fe[subscript 9]S[subscript 16]