Gold
In-situ leaching has not been used on a commercial scale for gold mining. A three-year pilot program was undertaken in the 1970s to in-situ leach gold ore at the Ajax mine in the Cripple Creek district in the US, using a chloride and iodide solution. After obtaining poor results, perhaps because of the complex telluride ore, the test was halted.
Read more about this topic: In-situ Leach
Famous quotes containing the word gold:
“Burning hot is the ground, liquid gold is the air;
Whoever looks round sees Eternity there.”
—John Clare (1793–1864)
“How quickly nature falls into revolt
When gold becomes her object!”
—William Shakespeare (1564–1616)
“Daughter to that good Earl, once President
Of England’s Council and her Treasury,
Who lived in both, unstain’d with gold or fee,
And left them both, more in himself content.
Till the sad breaking of that Parliament
Broke him, as that dishonest victory
At Chaeronea, fatal to liberty,
Kill’d with report that old man eloquent;—”
—John Milton (1608–1674)