Professional Equipment for Serious Detectorists!

Magazine

History & Geology

All About Chalcopyrite

…there are loads of different copper minerals, but a large number of them form first in the ground as chalcopyrite and then through the effects of weathering are changed into other minerals like malachite, cuprite and chrysocolla.

Online access required. Please .

Add a Comment

Additional articles that might interest you...

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.

Bedrock Gold: When It’s There and When It Isn’t


Has your experience ever led you to wonder why some gold is deposited on bedrock and in crevices, while other gold is not? We’re going take a deeper look at this and see what we can figure it out.

Prospector's Guide to Rock Breaking and Blasting


The holes were overloaded with explosives, but I didn’t know it. I was just a green mining engineer fresh out of school and told to watch as the experienced miners set the charge.

Georgetown CA: A Historically Rich Mother Lode Treasure


The interesting thing about the Mother Lode area is that we can pretty much find at least a little gold in any creek or river (and even in some of the many dry gulches).

Calcite and Limestone


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.

The Rush to Treasure Hill


There were some exceptional times in the far-flung history of the West. Rich finds of minerals that set men’s souls ablaze. From the rich gold fields of California, men who arrived too late to find riches went searching in every direction. The trail that we will follow leads east, past the shining silver district of the Comstock Lode.

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.

Subscription Required:
The Bawl Mill   • Ask The Experts: Can you review the differences in dry washers?   • Ask The Experts: Will this detector work for me?   • Ask The Experts: Nickel assays   • Ask The Experts: Potential for developing magnesite deposit   • Our Readers Say   • Selectable Frequency vs Multi Frequency Detectors   • Detecting Alluvial Bench Deposits -- Pt II   • The Goldfield Mining District -- Then and Now   • Nevada's Lithium Boom   • Old Patch, New Detector   • Over The Divide: James H Harrand & Daniel Yesberger   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

Free:
Legislative and Regulatory Update   • MMAC Update

Advertisements

Precious Metals Recovery plants and equipment
Fighting to keep public lands open to the public
Specializing in the processing of precious metal ores!
Watch prospecting shows on your computer right now
Free Online Sample Issue