Resurrecting An Old Hard Rock Mine--The Saga Continues
August 2019 by Ron Kliewer
Another little gem of equipment he built was a nifty sample splitter. In order to get accurate assays, you need to have really good, representative samples for the assayer to process.
There were nice sections of vein material at the end of several drifts, like they just stopped work one day and walked away.
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.
The next hurdle to jump was whether the trommel motor would start again after sitting on the desert for six years without being started. The last time it had taken a three foot pipe wrench to bust it loose.
Ivory Coast has considerable gold reserves, and this nation has the largest area of greenstone belts prospective for gold in the continent.
The metal is expensive, not because it is rare but because of the expense to produce and work it. The minerals mined for titanium are all oxides, unlike many base metals that are mostly mined as sulfide minerals.
We descended hunched over, down a long, steep, wooden staircase to the 1,000-level.
Improper sampling techniques lead to more avoidable heartache than almost anything else in micro mining.
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