Millerite : NiS
Chalcopyrite : CuFeS2
Collected by:
Photo added to mindat.org
“A 5 cm wide Millerite spray with Chalcopyrite, on and in Calcite (partly etched away using HCl)
”
Harjo Neutkens - 5th May 2011
Photo added to mindat.org
“A 5 cm wide Millerite spray with Chalcopyrite, on and in Calcite (partly etched away using HCl)
”
Harjo Neutkens - 7th May 2011
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