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VMS Deposits in Central Arizona

Volcanogenic Massive Sulfide (VMS) deposits in the Central Arizona Precambrian volcanic belt occur within a felsic package of volcanic rocks capped by an exhalite unit comprised of cherts, iron formations and siliceous members.

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The Many Facets of Iron


I’ve been fascinated by iron minerals for many years. So let’s take a look at this very interesting and colorful element.

Ask The Experts - Are custom mills available for titanium and tungsten?


History of Mining—Bradshaw Mountains, AZ (Part I)


The Bradshaw Mountains, southeast of the old territorial capital city of Prescott, contain traces of many old mines and the railroads that were built to serve them.

The Elusive Mother Lode


With history so often repeating itself, you can’t go wrong searching for gold using modern exploration techniques and exploration theories in regions of historic gold activity.

Miners: Plan Ahead for Next Year's Taxes


Many well-equipped prospecting or mining operations, those with adequate, up-to-date equipment, have discovered a secret: Uncle Sam, in the form of our tax laws, is eager to pick-up a portion of the tab for acquiring and modernizing the equipment necessary to operate a successful mining operation business.

Ask The Experts—Using classifiers


Q: I would like to know how to use a classifier when I dump my gravel into my sluice box. I would also like to know what sizes classifiers come in. I know that they are in sizes like -3/4. What does the “minus” in the size mean? Thanks for any help you can give me.

Key to Successful Prospecting: Confidence


The one undeniable truth in prospecting is that the more time you spend in the field, the more gold you will find. Here are a few keys I use to help build my confidence.

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