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Fire Agate in Arizona

Agate, a banded form of chalcedony (cryptocrystalline quartz), has been used as a gemstone for over 7,000 years. Romans cut and polished agate, and this practice was taken to new heights in Germany in the 16th century.

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Ask The Experts: Should I take my claim access problems to the Desert Advisory Council?


Q: The nearest access to the claim is a half mile walk, which is tough for a lode claim.

A Word from the Editor


I've received a few letters over the past year regarding assays and assayers. Most wanted to know how to tell the good ones from the bad. You'll find most of these questions answered by Ralph Pray in his article, "Fake Assays and Assayers," in this month's issue.

The Other Minerals of Mt. Diablo


Although it is now known that Mount Diablo, located in Contra Costa County in the East Bay region of the San Francisco Bay Area, was the site of the largest coal mining operation in the state during the last half of the 19th century... this majestic focal point... also was the source of other minerals.

Chasing the Ghosts of Forty-Niners


Plodding in the footsteps of the forty-niners across the sun-baked Nevada desert, I feel the ghost of a man named Israel Lord tap me on the shoulder.

Melman on Gold & Silver


...the much more important question is this: does this short-term strong rally necessarily portent a genuine turnaround from the metals share bear market that has been ongoing since mid-2011? For a possible answer, we turn to the long-term, five-year XAU chart.

Demand for Copper Boosts Zambian Mining


Surging global demand for copper has breathed new life into the mining industry in Chingola, a short drive from the Congolese border on top of some of the richest copper deposits in the world.

Mining Stock Quotes and Mineral & Metal Prices


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The Bawl Mill   • ICMJ Elected Prospecting Magazine of 2002   • Mining Investment—Or Fraud?   • Gold in Suriname   • Golden Age of Gold Dredges   • Prospecting With Limited Equipment   • Looking Back   • Beryllium in Utah   • Company Notes   • Picks & Pans: The Gold of "Eldorado Canyon"—Mariposa County, California   • The Canton Lead   • NAS Agrees to Review Superfund Science   • Tight Budgets Force Forest Service to Cut Back   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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