Critical Metals: Antimony
June 2016 by Chris RalphI’ve been taking a look at the mining and uses of a number of critical metals in series of articles, and it’s time to take a look at antimony.
It seemed that the preacher always gave the same answer to anyone who asked where his gold had come from. His answer was, “If you know your gold, you can find it. However, you will have to find it the hard way, the way I found it.”
The gold is all for sale. Just one tiny coin alone could go for $1 million because of its combination of rarity and the history behind it...
I couldn’t wait to get started. With no field budget, an assay budget of $100/year, a 1975-Ford Bronco that was a road hazard, a gas card, a topo map and full support of the director, I headed to the State Line district near Tie Siding along US Highway 287 to begin mapping kimberlite.
Potholes in bedrock can trap placer minerals and even be glory holes. They are, at least, interesting geologic phenomena, and at best, a treasure trove of gold nuggets.
The gravels in contact with the bedrock or false bedrock base are often the richest. The same facts apply to the alluvial paystreaks that are formed on gravel bars; the lowest level of the gold-bearing gravel is normally the richest.
The hair stood up on the back of my neck when I saw this, especially the nice patches of wash in the bottoms of the gullies, a sure sign of an auriferous source being nearby.
The truth is that cemented gravels are really not all that complex. There is no mystery of how gold grew there or somehow wormed its way into these solid gravels.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts • The Heavy Minerals in Your Concentrates • MMAC & PLP Update • Pocket Gold • Care and Lubrication of a Model 13 Laboratory Wilfley Table • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices