Sustainable Green Team Ltd. (SGTM)

[b4atf]

One of the great features of gold is that is inert. Gold will not combine with other elements. It can get encased by other elements though. You often see veins of pure gold running through quartz for example. Most of the expense for hard rock miners actually comes from needing the crushers and other heavy equipment to break up the gold bearing rock.

Placer/Alluvial mining is different. Millions of years of erosion has worn away the accreted rock and left very pure gold, usually 90 percent to 98 percent pure ranging in size from flour gold to large nuggets.

Because of its specific gravity/density you can refine gold in an iron crucible using only a blowtorch if you want to. Gold is so dense that rocks actually float to the top and can be skimmed off like the grease in a crock pot of soup.

Just pour the rest into a clay mold to cool and you have a pure gold bar.

All the surface gold on earth was formed millions of years ago deep down near the mantle. Volcanos and shifting tectonic plates, earthquakes, mountains forming, brought it to the surface. Erosion from floods and rain washed it into low lying areas. Rivers are as low as it can get which is why miners look to rivers both ancient and modern.
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