SEM-data for placer gold related with some valley around Borov Dol porphyry copper deposit, R. Macedonia

This paper presents SEM data from research of
gold aggregates which was found from schlich
prospection which was performed along the
creek Meckin Dol, around the Borov Dol Cu-
Au porhyry deposit. The size of the tested gold
aggregates ranges from 30 m to about 600
m.Form of gold aggregates was isometric –
irregular form.The chemical composition of
gold aggregates display an average gold content
ranging from 74.15% - 99.32%, silver with an
average content of 0.3% - 24.68%,and an
average copper content of 0.04 to 11.06%. Fe,
Bi, Se, and Te are represented with content less
than 1%. In general the examined gold
aggregates, by their chemical composition, are
characterized by high purity ranging from 750
to 996.