All Articles
Gold Rush Ship Uncovered in San Francisco
October 2001 by Associated Press
Workers at a hotel construction site uncovered a Gold Rush-era ship that had been buried for decades under the streets of the city’s Financial District.Additional articles that might interest you...
North Korea Seeks Outside Help to Modernize Mining
March 2002
Eager to earn hard currency, isolated North Korea is trying to modernize its decrepit mining industry with foreign help.
Eager to earn hard currency, isolated North Korea is trying to modernize its decrepit mining industry with foreign help.
USGS Reports Increase of Imported Minerals
September 2001
Since 1993, US reliance on imports of raw and processed materials of mineral origin has increased more than seven fold.
Since 1993, US reliance on imports of raw and processed materials of mineral origin has increased more than seven fold.
Company Plans to Develop Cabinet Mountains Mine
September 2004
A Spokane mining company says it plans to develop a silver and copper mine in the Cabinet Mountains Wilderness Area on the Idaho-Montana border.
A Spokane mining company says it plans to develop a silver and copper mine in the Cabinet Mountains Wilderness Area on the Idaho-Montana border.
Companion Gold
June 2015
Easing around the bedrock ledges and rock hopping, Terry and I came out into the open and were looking at a nice run of bedrock.
Easing around the bedrock ledges and rock hopping, Terry and I came out into the open and were looking at a nice run of bedrock.
Gold and Silver Deposit May Be World's Largest
June 1999
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
A crater in an undersea volcano off Japan may contain the world's largest gold nugget ever found...
Gold Deposits in Skarn
July 2003
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
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