Xtra-Gold Resources (OTCBBB: XTGR; TSX: XTG) received a positive, preliminary metallurgy report from SGS South Africa (Pty) Ltd. in connection with a gold deportment study aimed at characterizing the gold in sulphide and oxide (saprolite) mineralization from the Big Bend Gold Zone in order to make recommendations on a process route to maximize gold recoveries.
According to SGS, the following are certain of their preliminary conclusions:
“The gold in the G478923 gold ore samples (3.49 g/t Au) is highly amenable to cyanidation leaching with ~97% recoverable by means of direct cyanidation. This ore is also amenable to gravity upgrading, with ~67% of the gold recovered at a mass pull of ~3%. In the gravity concentrate (97.5 g/t Au), a total of 143 particulate gold grains were observed in the gravity concentrate of this sample.”
“The grading analysis on the G478923 gold ore sample indicated a very high upgrading of gold in the +106 micrometre size fraction (~69%). This indicates that the gold is either large gold grains or locked in large gold-bearing particles. From the liberation and mineral association characteristics determined by QEMSCAN, on the gravity concentrate, the gold was found to be ~63% liberated and ~25% was associated with pyrite. This indicates that the gold is either large, liberated gold grains or locked in large gold-bearing pyrite particles.”