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Glacial Gold in Ohio
January 2002 by Edgar B. Heylmun, PhD
Ohio is an industrialized, midwestern state with a population of 11.5 million and an area of 40,953 square miles. Annual precipitation is about 40 inches, enough to give rise to hardwood forests...
Ask The Experts
• How small should I crush my hard rock ore?
A Guide to Overlooked Gold Deposits—Part IV
Trends are geologic situations in which the geological structure of an area is conducive to the deposition of minerals. These structures are generally fault systems that can be small and localized or can run for miles.
Critical Minerals: Tungsten
Because tungsten minerals are heavy, exploration can be done using stream sediment samples. Prospectors looking for gold have found scheelite or wolframite in their placer concentrates, and in some cases this has led them to make important tungsten finds.
National Hall of Fame Names 2017 Inductees
Mining Stock Quotes and Mineral & Metal Prices
Mining Stock Quotes and Mineral & Metal Prices
Legislative and Regulatory Update
• Alaska Governor blasts state habitat division
• Laws proposed and reviewed in Washington State
• Comments needed on California's arsenic goals
• New explosives requirements
• Bill introduced to curb ESA abuses
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The Bawl Mill
• Our Readers Say
• NMFS Official Admits Bogus ESA Analyses
• Administration Officials Pledge to Work Closely With Miners
• The Fort Knox Mine—1,200 Ounces a Day
• Picks & Pans: Diamond Hunting in Wyoming
• Aussie Gold—A Look at New South Wales
• The Green Land-Grabbers: It's Not Just the Feds Who Are After Your Land
• ICMJ's 11th Annual Photo Contest Results
• A Rich Gold Strike at Scossa
• Company Notes
• 3809 Drawing Winners
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
