RE: RE: Afri-Can News on Dow JonesFYI
https://www.mme.gov.na/gsn/basemetals.htm#Haib
Haibcopper porphyry
Porphyry copper mineralization is present at the Haib and Loreleiprospects in southern Namibia. The Haib copper porphyry-type depositencompasses the three characteristic alteration assemblages typicallyassociated with copper porphyry type deposits:
1)potassic zone – hydrothermal formed potassium feldspar,
2) phyllitic zone – plagioclase is completely replaced bysericite and quartz; pyrite is a major rock-forming mineral and
3) propylitic zone – mass chlorite, epidote and calcite –abundant pyrite. Sulphide minerals include chalcopyrite, bornite,chalcocite, covellite, tennantite, molybdenite, galena, sphalerite,pyrite, arsenopyrite and pyrrhotite. The supergene enrich cap hasbeen eroded, leaving a relatively low grade copper deposit.