History & Geology
Surface Indications Of Quartz Adularia Epithermal Deposits
May 2015 by Alex Dolbeare
I am going to keep to the basics of surface indications and visual clues in the rocks and minerals themselves that help me find gold-bearing veins in this classification of deposits.
Ask The Experts
Sulfides and oxides—what's the difference between the two?
The Wild Rush to Find More Cobalt—Part I
While some future cobalt will come from recycling lithium batteries and other products, the coming huge need for cobalt is virtually a perfect storm of heavy demand and insufficient supply.
California's Mother Lode Quartz Veins
The actions of the hot, ore-bearing solutions are not limited only to the deposition of material within the walls of the fissures.
SS Central America Gives Up Millions in Gold Rush Era Gold
A treasure-seeking young man whose name will forever remain anonymous made the months-long journey either over land or by sailing ship to California after word spread about the gold strike in 1849.
"Gold Rush: Alaska" in the Porcupine Mining District
Honestly, I don’t believe it is likely there would be a glory hole where they described one at the bottom of the waterfall because plunging water with enough energy to scour out a large hole in bedrock would have the scouring ability to grind up and...
Strategic Metals—Part I
A bill was introduced and passed by the House of Representatives earlier this year that should make the exploration and opening of a mining operation faster and easier.
Prospecting Homonyms
Three homonyms come to mind when I think of gemstones, gold and vegetables: carrot, carat and karat. Let’s look at carrot first.
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• What To Look For—And Look Out For—In A Placer Mineral Report
• Additional Note on Bluff's Beach
• Montana’s Rosetta Stone: Discovering Mines In The Treasure State
• Perception of Mining vs. Reality
• Partnering for Tax Savings
• Over The Divide: Charles Lewis Garrett
• Piggin' for Gold
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