Once the ore
has been refined to this point, it is ready for smelting. This is done
twice. The first time certain chemicals are smelted with the gold,
this removes impurities. When the right temperatures are reached,around
2400 degrees, the stuff is poured into a conical container.
When it cools off the gold collects on the bottom of the cone and the chemicals
plus the impurities stay on top and turn into glass. The glass is broken
away from the goldcone 
,which
is then resmelted 
and poured into the brick form,
and voila!..........
64 pounds (933 ounces) of
Gold!!!