All Articles
The Basics of Small-Scale Heap Leaching with Cyanide
August 2007 by Chris Ralph
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.
USFS OKs Exploratory Drilling in Eastern Idaho
The new plan approved by the FS says water for drilling at Dog Bone Ridge will now come from Beaver Creek rather than Coral Creek. The agency also said Excellon has added several monitoring sites associated with Dog Bone Ridge.
Melman on Gold & Silver
Not being a psychiatrist, this writer is not aware of the specific term for a condition laymen refer to as “split personality.” However, whatever that term might be, it would be wholly appropriate for the news background during the past month. We were first subjected to one news story after another that suggested that our economic world was on a truly shaky foundation—and then, suddenly, we were “blessed” with a barrage of positive developments.
Mineral Exploration On The Rise
…2017 was just the first year with a small increase after a huge drop off in exploration activity. It may take many years of future increases to get back to where the activity was in 2012, as projected increases in exploration spending are seen to be slow and steady.
Common Operations—Small-Scale Mining and Sharing the "Take"
The “Forty-niners,” known as “Argonauts,” separated the loose gold known as “wet diggin’s” from the river gravels using a wash pan. The pan was made of tin or iron and had a flat bottom and sloping sides.
Washington Department of Fish & Wildlife Raises Harassment of Miners to a New Level
New regulations have given the enforcement arm of the WDFW official “police” status, with the authority to issue citations, pursue warrants, make arrests and confiscate items.
An Alaskan in the Lower 48
Our destination was some old hydraulic workings where the old miners had washed literally mountains of material away to expose gold in ancient river channels.
A Walk Through The Gold Indicators
The question that most new people have is, “What do I detect?” Most people have a picture in their mind of what it takes to make what they are seeing a good place to detect. This is what I will try to sort out for you.
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The Bawl Mill
• Ask the Experts
• Will California Dredging Survive?
• Prospecting For Gold—The Osborne/Herman Hardrock Mine
• Journeys in the Kingman Quadrangle
• From Spanish Mine to Modern-Day Exploration: The Historic Gold-Silver Camp of Palmarejo
• Spanish Police Seize Ship in Treasure Fight
• Looking Back
• Gold Mine Proposed in Jefferson County
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
