August 2007 (Vol. 76, No. 12) $3.75
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The Bawl Mill
• Where do I apply?
• Seriously, where do I apply?
• FEMA: “I only have “ice” for you...”
• Put your carbon emissions where your mouth is! -
Ask the Experts
Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)
If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated? -
Legislative and Regulatory Update
• This is a friendly reminder
• Homebuilders’ case may help miners
• “Ecological resources must be protected…” -
The Basics of Small-Scale Heap Leaching with Cyanide
In last month’s article I talked a bit about opportunities for heap leaching small hardrock deposits. This month I’m going to talk about the basics of putting together a heap leach project, including building the pad and leaching the ore. -
Will California Dredging Survive?
Assembly Bill 1032 has passed the California House of Representatives. The bill was authored by CalTrout and the Karuk Tribe, then introduced by Representative Lois Wolk. -
Prospecting For Gold—The Osborne/Herman Hardrock Mine
We’re always out there looking, checking, researching and trying to locate a new prospect or deposit. It’s always a question as to where to start. Some days we head down to the river to do some panning, sluicing or dredging. -
Journeys in the Kingman Quadrangle
This is a story of a bit of our earth, carved by lines of longitude and latitude. There is a deep mystery in this land. The naked mountains speak of long ages of thrusting and rifting—of uplift and erosion. These riddles in the rock defy explanation. -
From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo
Palmarejo Silver & Gold Corp., based in Longueuil, Quebec, is a gold-silver exploration company reexploring a former Spanish silver district in far southwestern Chihuahua. -
Spanish Police Seize Ship in Treasure Fight
Spanish Civil Guards heightened a battle over a $500 million treasure of gold and silver coins from a shipwreck when they seized a vessel belonging to a Tampa, Florida company. -
Looking Back
Excerpts from California Mining Journal, our original title, published 50 years ago this month. -
Gold Mine Proposed in Jefferson County
What could be the first underground gold mine to open in Montana in at least a decade is proposed near the ghost town of Elkhorn in Jefferson County, Montana. -
Melman on Gold & Silver
Once again international terrorism became the focus of much of the world as the British Isles were swept by two major stories. First, two vehicles were found with high explosives in London and it was only the smoldering fuses that gave away the contents of the vehicles before they exploded.
