June 2004 by Edgar B. Heylmun, PhDThe platinum group metals (PGMs) are divided into three that are “light,” about the same atomic weight as silver, and three that are “heavy,” about the same atomic weight as gold. The three light PGMs are ruthenium, rhodium, and palladium, and the three heavy PGMs are osmium, iridium, and platinum.
Conservative Utah lawmakers want to spark a US Supreme Court case that could ultimately allow states to develop resource-rich parcels of land that are now off limits where the federal government is the landlord.
Chris got a nice target signal on the edge of rising bedrock, but still in a low, but washed area. After breaking up the bedrock, he recovered several pieces of gold amounting to almost three pennyweight.
Once I have established the presence of gold in the sample, I collect five-gallon bucket quantities of the rock material for processing back at my shop.
To say that the international environmental community took exception to President Trump’s decision to remove America from the 2016 Paris Accord would be an understatement of enormous proportions.
The Little Rocky Mountains are a group of wooded hills, 10 miles long and 8 miles wide, which form an island in the Great Plains of north-central Montana. They rise to 5,708 feet, 2,000 feet above the surrounding plains.
The little-known Sunnyside district in Cochise County, Arizona, is on the southwest side of the Huachuca Mountains, which reach elevations in excess of 9,000 feet.
The Bawl Mill • Higher Copper Price Brings Hope, Jobs • Zeballos Gold Camp, British Columbia • Agreement Allows Pogo Mine to Resume Construction • Treasure Hawk Mine Back in Action • Oregon Dredgers Receive Threats From Environmentalists • Understanding Hard Rock Mining: Terms and Methods—Part I • Mood at Calgary Conference is Subdued, But Optomistic • Reinventing the Wheel—The Infinity-Jet • Company Notes • Endangered Species Act is a Mess • Here Come the MineBots • Agency Gives Initial Backing to Kensington Mine • Mining Stock Quotes and Mineral & Metal Prices • Looking Back • Melman on Gold & Silver • Brits Thwart Robbery of Gold and Cash