Garrett Electronics - trusted by real miners & prospectors!

Magazine

History & Geology

Natural Gold Alloys

Natural gold is never 100% pure; all natural nuggets contain at least some impurities. We're going to take a look at just what some of those impurities might be.

Online access required. Please .

Add a Comment

Additional articles that might interest you...

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.”

Gold Placers in Italy


Gold is a fairly widespread mineral in the Italian Alps and in the Northern Apennines. It is found both in primary mineralization and in past and recent floods.

Gold Ores of the Delamar District, Nevada


Even as late as 1906, Delamar was second only to Tonopah and Goldfield in production outshining many better known areas. Since the first discoveries, more than 700,000 ounces of gold have been produced from the mines here.

Silver and Base Metal Deposits of the Pioche District


The areas that were mineralized with the bedded ore were huge and vast tonnages were indicated, although they had no idea at the time.

Iron Ores and Iron Mining


For more than 40 years, iron ore prices have been decided by private negotiations conducted between the largest of the iron miners and the largest steel producers. These two sides dominate both the spot and contract iron ore markets.

Residual Placers: An Often Overlooked Gold Source


Because the forces of erosion and gravity tend to carry lighter materials like quartz away more easily, the heavy minerals like gold or silver will tend to be concentrated in the general area around the vein outcrop. These concentrations are what make residual placers so attractive.

Subscription Required:
The Bawl Mill   • Ask the Experts   • Ask the Experts   • Ask the Experts   • Ask the Experts   • Prospecting Hard Rock   • Reese River Silver Mining District, Nevada   • Alaska: Large-Scale Mining Can Be Done Right   • Gold of the Iditarod Mining District, Alaska   • Bedrock   • Government Takes Land for Open Space   • Comments on Gold Rush and Bering Sea Gold Series   • Hidden Value in Old Tailings   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

Free:
Legislative and Regulatory Update   • Twenty-Five Gold Indicators You Should Know

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