All Articles
Using A Trommel For Placer Processing
April 2010 by Chris Ralph
The behavior of a trommel is dependent on how it is designed and set up. Important design characteristics include feed rates, screen perforation sizes, cylinder size, rotation speed and incline.Additional articles that might interest you...
Record Interest at Recent Mining Conventions
March 2006
If anyone needed convincing that high metals prices have brought mining back into the public’s consciousness, two conventions held in Vancouver, British Columbia near the end of January 2006 should have ended any doubt.
If anyone needed convincing that high metals prices have brought mining back into the public’s consciousness, two conventions held in Vancouver, British Columbia near the end of January 2006 should have ended any doubt.
Xmet Aims for One Million Ounces
March 2012
The beautiful province of Quebec, known in French as “La Belle Province,” is not only famous for its scenic attractions and world-renowned cities such as Montreal and Quebec City, but also as being one of the most attractive places for mining...
The beautiful province of Quebec, known in French as “La Belle Province,” is not only famous for its scenic attractions and world-renowned cities such as Montreal and Quebec City, but also as being one of the most attractive places for mining...
Looking Back
November 2002
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Why Environmental Groups Prefer Kerry
October 2004
President Bush signed Executive Order 13352, “Facilitation of Cooperative Conservation,” on August 26, 2004. The order instructs the departments of the Interior, Agriculture, Commerce and Defense, and the Environmental Protection Agency to carry out their activities in a manner that “takes appropriate account of and respects the interests of persons with ownership or other legally recognized interest in land and other natural resources” and to “properly accommodate” local participation.
President Bush signed Executive Order 13352, “Facilitation of Cooperative Conservation,” on August 26, 2004. The order instructs the departments of the Interior, Agriculture, Commerce and Defense, and the Environmental Protection Agency to carry out their activities in a manner that “takes appropriate account of and respects the interests of persons with ownership or other legally recognized interest in land and other natural resources” and to “properly accommodate” local participation.
Over The Devide
December 2022
Legislative and Regulatory Update
September 2021
• Critical minerals addressed in infrastructure bill
Placer Platinum
June 2004
The platinum group metals (PGMs) are divided into three that are “light,” about the same atomic weight as silver, and three that are “heavy,” about the same atomic weight as gold. The three light PGMs are ruthenium, rhodium, and palladium, and the three heavy PGMs are osmium, iridium, and platinum.
The platinum group metals (PGMs) are divided into three that are “light,” about the same atomic weight as silver, and three that are “heavy,” about the same atomic weight as gold. The three light PGMs are ruthenium, rhodium, and palladium, and the three heavy PGMs are osmium, iridium, and platinum.
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