At the present time this plant is treating by direct cyanidation 1,000 tons of ore from Open Cut mining and dumps, and 1,200 tons of current flotation tailing obtained from the Sulphide Mill, per day.The following table shows the average analysis of the two feed products (see Table 1):Precipitation Process.-The pregnant solution obtained by the cyanidation of the above has the following general analysis:-Gold 0600 dwt. per tonTotal Cyanide 0050 %Free Cyanide 0045 %Calcium Oxide 0015 %KCNS 0060 %Na2S20S 0140 %CaS04 0200 %Cu 0050 %Zn 0004 0/0K4Fe (CN) 6 NilThis solution, after standard clarification, is precipitated by means of zinc dust and a soluble lead salt.