History & Geology
Gold Rush Continues in Africa
March 2015 by Chris Ralph
…some miners are doing exceptionally well… with a few obtaining amounts estimated in the millions of dollars.
Gold, Quartz & Chalcedony—Part II
The specific gravity of chalcedony is 2.58 to 2.64. This is slightly lower than coarsely crystalline quartz because of slight porosity in chalcedony. Being so light, it will easily wash out of a gold pan.
The Heavy Minerals in Your Concentrates
The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.
Prospecting for Diamonds in Kimberlite
Kimberlite is very difficult for geologists to find, let alone prospectors and rock hounds. This is because kimberlite is rarely exposed on the surface and few people know how to identify the rock.
Exploring and Mining for Uranium
For a time uranium was more popular with prospectors than gold, but this is no longer true, and it has been decades since it was common to see individuals armed with Geiger counters out in the field.
Prospecting for Copper Ores—Part II
Copper is a critically important metal that we need to run our modern electronic society, and the long term outlook for this metal is for a steady increase in price.
Flood Plain Gold Deposits—What Are They Really?
We just completed a trip to another river, and yes, there was definite movement and redistribution of gravels, and other prospectors have seen this as well.
Gold of the Iditarod Mining District, Alaska
It was the middle of winter and the valley was covered in snow, making prospecting a matter of sinking shafts in the ground.
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The Bawl Mill
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• Ask The Experts
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• Just Another Ordinary Weekend
• Small-Scale Hard Rock Mining With Water Recycling
• The Paragenesis of Gold & Silver Deposits
• Getting A Successful Start in Metal Detecting for Gold
• Placer Mining At Chititu Creek, Alaska
• Gold Refining In The Ancient World
• Tasers and Mining Don't Mix
• Thinking Outside The Creek
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
