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:
“On the breast of her gown, in fine red cloth, surrounded with an elaborate embroidery and fantastic flourishes of gold thread, appeared the letter A.”
—Nathaniel Hawthorne (1804–1864)
“And the Goddess?
She stands
between the worlds.
She is ivory,
her breast bare, her bare arms
braceleted with gold snakes.”
—Denise Levertov (b. 1923)
“We ask which means most, for us, all the genii
Or one man who, for us, is greater than they.
On his gold horse striding, like a conjured beast,
Miraculous in its panache and swish?”
—Wallace Stevens (1879–1955)