Discoloring Assay Beads
October 2001 by Charles L. ButlerWe have developed a discoloring procedure, that makes parting unnecessary in many cases. Our discoloring solution contains sulfur, an element that tarnishes high silver content beads quite rapidly.
Agnico-Eagle Mines will open Europe’s largest gold mine in northern Finland in 2008, the Canadian company and local officials said.
Robert Sanregret—Attorney at Law
Western Mining Council
National Association of Mining Districts
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.
The other distinguishing feature of calcite has to do with its chemistry. Geologists sometimes take a small bottle of dilute hydrochloric acid out into the field with them because calcite reacts with acids to make a bubbly foam.
This is the intelligent way to start modern prospecting. The value of literary research yields challenging outings, specimens, history and geologic research.
I enjoy your magazine very much. I read it from cover to cover every month.
The Bawl Mill • Our Readers Say: • Placer & Lode Gold Deposits • Spanish Silver in Arizona • Hog Mountain Mining, Past and Future • Picks & Pans: Dredging Costa Rica • Gold in Texas • The Goldhill Mining District • New Arsenic Study Supports Tougher Standards • Miners Resume Search for Platinum Near Platinum • Tons of Gold Buried Under World Trade Center • Gold Rush Ship Uncovered in San Francisco • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver • The Financial Repercussions of the WTC Tragedy • Permit Appears Likely for Rock Creek Mine