All Articles
How PGMs Affect Assay Beads
September 2001 by Charles L. Butler
Most fire assayers are trained to observe the cupelled beads very carefully, noting any discoloring or surface roughness that might indicate that one or more of the platinum group metals (PGMs) are present. The “clues and tests” I have included in this article stem from several sources, including my 35 years of experience performing torch assays...Additional articles that might interest you...
State Lends Help to County in Nevada Road Fight
April 2015
Nevada’s attorney general for the first time is joining a rural county in a 15-year-old legal battle...
Nevada’s attorney general for the first time is joining a rural county in a 15-year-old legal battle...
Gold in Iceland?
December 2001
Normally, one does not look at volcanic islands in a search for gold. However, rich gold deposits have been found in or near volcanoes at Lihir and Misima Islands near New Guinea, so one cannot dismiss gold opportunities on volcanic islands. All of Iceland is of volcanic origin, with acidic volcanic rocks like rhyolite and granophyre being present at a few localities.
Normally, one does not look at volcanic islands in a search for gold. However, rich gold deposits have been found in or near volcanoes at Lihir and Misima Islands near New Guinea, so one cannot dismiss gold opportunities on volcanic islands. All of Iceland is of volcanic origin, with acidic volcanic rocks like rhyolite and granophyre being present at a few localities.
Customizing Your Dredge
January 2013
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
Placer vs. Lode Gold
May 2001
For centuries gold has been a symbol of wealth for both individuals and nations. Because of its chemical and physical resistance it has been widely sought after by early explorers whose only motive was to find new sources of gold.
For centuries gold has been a symbol of wealth for both individuals and nations. Because of its chemical and physical resistance it has been widely sought after by early explorers whose only motive was to find new sources of gold.
Getting A Successful Start in Metal Detecting for Gold
March 2015
Once you have a detector, learn how to use it and get out in the field—you can’t find anything with it in your garage.
Once you have a detector, learn how to use it and get out in the field—you can’t find anything with it in your garage.
Looking Back
July 2000
Excerpts from CMJ published 50 years ago this month.
Excerpts from CMJ published 50 years ago this month.
MMAC Update
January 2017
We will be bringing the first of several bills that were requested by Congress during a previous MMAC trip and presenting maps depicting all the MMAC-assisted Mining Districts.
We will be bringing the first of several bills that were requested by Congress during a previous MMAC trip and presenting maps depicting all the MMAC-assisted Mining Districts.
Subscription Required:
The Bawl Mill
• A True Endangered Species
• Guest Editorial—Vertical Disintegration
• USGS Reports Increase of Imported Minerals
• The San Juan Mountains, Colorado
• A Silver Opportunity
• Gold in Virginia
• Picks & Pans: DEF Prospectors Rally Was a Huge Success
• News From GATA
• Our Nugget Shooting Adventure
• Fly Fishing the Mine Tailings/Headwaters of the Clark Fork, Montana
• Company Notes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
