Assertion: chalcocite | /r/HasProperty | leached with ferric sulphate
Facets:
Source sentences:
text: When it is leached with ferric sulphate, the dissolution takes place in two stages, which may be written:
text: When chalcocite is leached with ferric sulphate one-half of the copper dissolves rapidly leaving a residue approximating CuS which dissolves much slower; with bornite the copper is attacked preferentially to the iron; while with chalcopyrite the mineral dissolves as chalcopyrite; that is, at any stage in the dissolution (up to an extraction of approximately 45 per cent of the copper which has been the maximum studied), the ratio of Cu: