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Honda Pares Down Use of Precious Metals in Autos
May 2001 by Associated Press
Honda Motor Co. said it will begin using new catalytic converter technology it believes will slash use of pricey precious metals in auto emission-control systems by 50 to 70 percent.Hard Rock Milling: A Matter of Scale
Most prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
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Michigan House Votes to Give Mining Operations More Flexibility
Casperson said he is not worried about businesses subverting the language in the bill because the DEQ would still have the authority to halt the new construction if it is deemed environmentally unsound.
Practical Advice for Milling Hard Rock Ores
The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.
California Destroys Another Prospecting Business
His small business managed to pump millions of dollars over the years into the California economy.
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