The accumulation of platinum metals in sulfide disseminated gold ores
and native gold in carbonaceous shales is considered. Three mineral fo
rms of platinum metals are recognised in the ores: 1) dispersed trace
elements in the carboniferous matter and in sulfides, 2) trace element
s in host minerals (native gold and silver, tellurides of gold and nic
kel), 3) as a separate mineral of predominant platinum group element.