Assertion: chalcocite | /r/HasProperty | formed as primary vein mineral
Facets:
value: in supergene deposits
type: LOCATION
value: more typically,
type: DEGREE
Source sentences:
text: Chalcocite is formed either as a primary vein mineral or, more typically, in supergene deposits where it forms as a result of the redeposition of copper from the breakdown of minerals such as chalcopyrite or bornite.