History & Geology
Calcite and Limestone
February 2017 by Chris Ralph
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.
Montana’s Rosetta Stone: Discovering Mines In The Treasure State
This is the intelligent way to start modern prospecting. The value of literary research yields challenging outings, specimens, history and geologic research.
It Pays to Know Your Bedrock
On our last trip, we brought ropes and went down the first waterfall forty vertical feet, only to be confronted by a second, sixty-foot-high, overhanging waterfall that emptied into a slot canyon.
Refractory Gold Processing
After your excitement peaks when you first receive the high gold assay from the vein you just exposed, you ponder how you will extract and sell your gold. You will need to develop a flow sheet for your process to optimize your recovery and minimize your costs and permit requirements.
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.
WSGS Releases New Geologic Maps
The Wyoming State Geological Survey announced ten new geologic maps have been completed and are now available.
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.
All About Pyrite
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.
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