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How to Utilize Assays and Evaluate Results
June 2009 by Chris Ralph
Ask the lab manager how your ores will be tested, and ask to see the equipment that will be used. If you are told it’s a secret that can’t be explained, you need another assayer.
Mining Stock Quotes and Mineral & Metal Prices
Ask the Experts
• Should I introduce mercury in the centrifugal bowl to aid gold recovery?
Tribe Joins Idaho in Roadless Suit
The Kootenai Tribe has joined Idaho Attorney General AI Lance's suit against the U.S. Forest Service over the Clinton administration's bid to set aside millions of forested acres in the state.
What To Do When Gold Recovery and Assay Values Differ
Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.
The Tombstone Silver-Lead District, Arizona
In 1877, a prospector named Ed Schieffelin discovered silver in “the middle of nowhere” and staked two claims: “Tumbstone” and “Graveyard.” Soon a town and mining district were organized and acquired the name “Tombstone” after making a spelling correction.
The Rochester Mining District of Nevada
Only the richest ores could be worked and shipped off for processing at a profit. As a result, early mining in the southern part of the Humboldt Range was short-lived. In the 1880s, placers were discovered in Spring Valley and American Valley on the east side of the range...
Legislative Update
Robert Sanregret—Attorney at Law
Western Mining Council
National Association of Mining Districts
Subscription Required:
The Bawl Mill
• Mining Expedition at Eagle Rock—Part II
• Broomstick Gold
• Electra Gold Sees Potential in Other Minerals & Metals
• The Forgotten Specimen—Part I
• Miner's Cabin—Red Shack Territory
• "New" Gold Rush Has Arrived
• NASCAR Driver Turns Prospector
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
