Gold, Quartz & Chalcedony—Part II
November 2011 by W. Dan HauselThe 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.
…let’s dive in and take a closer look at these rich gold and silver-bearing minerals to find out what they are, where they form, and how to identify them.
The nugget sat there in plain sight, though it was covered in dirt, while hundreds of people had passed that way every day.
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
There are a large number of different kinds of gangue minerals, and each of them has its own tale to contribute to the story of the chemistry and geology of a deposit.
Some gems can potentially poison you, make you sterile and even make you forget who you are.
The Oatman/San Francisco Mining District’s historic gold production of 2.2 million ounces of gold since the 1880s makes this area Arizona’s greatest primary gold producing district.
The Bawl Mill • Legislative And Regulatory Update • Ask The Experts—Compensation for closed mining claim? • Ask The Experts—Inconsistent fire assays • Gold From Cemented Gravels • Evolution Of A Gold Prospect • Alaska to Target Rare-Earths • Minnesota Delays Decision on Mineral Leases • Alaska's Cripple Creek Mining District • The Gold Of Horseshoe Bend • Tyrie's Roadway Nugget • Melman on Gold & Silver