The yellow sulphide is likely to be chalcopyrite, althought it could be pyrite, and the peacock sulphide is likely to be bornite.
I wouldn't expect to see much chalcocite in a primary sulphide sample like this one, but there may be if it is a zone of secondary sulphides.
If you have enough tonnes of the material shown in the sample, you have a mine. Compare with the core sample photographs in the Tasman Chief Geologist's presentation at the AGM!
what is this stuff? any geo's about?, page-11
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