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.
America has lost another ex-president with the passing last month of Gerald Ford, the only non-elected president in history. It is worth remembering, however, that he came into the office under incredibly difficult circumstances and acquitted himself well. He will be fondly remembered.
A number of crevices were still waiting to be cleaned out. A lot of the gold remaining in the pit was very fine sized, but a few small nuggets were also recovered.
The Arizona Department of Mines and Mineral Resources has released the Directory of Active Mines in Arizona, 2001-2002.
North Dakota, 70,704 square miles in area, is situated on the Great Plains, in the geographic center of the North American continent. It is bounded on the north by Canada.
Marketing other minerals recovered while gold mining
• Administration won't appeal latest ruling on Roadless Rule
• Improved forest management plan by year's end
• IBLA rules in favor of Cortez Gold Mine and BLM
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