History & Geology
Las Médulas—The Gem of the Roman Gold Mines
July 2018 by Alan J. Chenworth
This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.
The Goldfield Mining District, Nevada—Part II
The majority of the gold produced in Goldfield has come from ores that are close enough to the surface to be oxidized by the air. This oxidized ore is normally a soft, shattered, earthy material usually stained yellow to brown by oxides of iron.
Alaska Gold: Lisianski Inlet's First Bonanza
In 1967, a local resident showed me a pouch of small gold nuggets and flakes. Several years later I asked the same person where that gold was found. He responded, “From the streambed below the old stamp mill at Apex.”
How to Recognize Hard Rock Gold Ores
I regularly get inquiries along the line of: “Hey, I found this rock, and I think it might be gold ore. How can I tell?” Prospectors are always on the lookout for gold-bearing rocks that may be the source of any nearby placer gold.
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.
When Legends Were Made and Fortunes Found
Sylvester Smith and his younger brother Nathan were among this group who rode and led their Indian ponies, while climbing the rugged Salmon River breaks and rockhewn mountains, looking for a path that would lead them up and over the uncharted wilderness.
Ancient River Channels of Trinity County
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
The Birimian Greenstone Belts of West Africa
The country we were to visit was Burkina Faso, a small country about the same size of my home state of Nevada with about 10 times more people. The second day I was in Africa, we went out to the goldfields for the first time.
Subscription Required:
The Bawl Mill
• Ask The Experts - How were those gold concentrate bricks made?
• Ask The Experts - What should I know about prospecting for titanium?
• Mining Pegmatite Deposits
• Legislative and Regulatory Update
• SS Central America Gives Up Millions in Gold Rush Era Gold
• Falcon Fanatic: Journey of a Novice Detectorist
• Critical Minerals: Titanium
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
PLP Update: Back to The 'Swamp' on Behalf of Small Miners
