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The Minerals Yearbook is an annual publication from the United States Geological Survey. It reviews the mineral and material industries of the United States and other countries. The Minerals Yearbook contains statistical production data as well as information on economic and technical trends. First published in 1933, it was preceded by The ...
Mining near Chiatura. In 1972, facilities put into operation in Chiatura included new mines equipped with ore-dressing plants, a central final concentration plant for processing low-grade manganese ores into higher-grade ores, a central flotation plant, a plant for dressing carbonate ores, and a number of enterprises designed for improving the grade of ores.
The Bureau's Minerals Information functions were transferred to the U.S. Geological Survey (USGS) in early 1996. The "Mineral Industry Surveys", "Mineral Commodity Summaries", and the "Minerals Yearbook" continued to be published. The Bureau's technical reports are archived by the Technical Report Archive & Image Library. [7]
Mining in the United States has been active since the beginning of colonial times, but became a major industry in the 19th century with a number of new mineral discoveries causing a series of mining rushes. In 2015, the value of coal, metals, and industrial minerals mined in the United States was US$109.6 billion. 158,000 workers were directly ...
Revett Minerals, Hecla Mining: Closed 2015; active between 1981 and 1983, and 2005–2015 Yerington - Anaconda: Lyon County, Nevada: Anaconda Copper: Closed since 1978 Pahaquarry: Warren County, New Jersey: Closed since 1928 Schuyler: Bergen County, New Jersey: Closed since 1901 Burra Burra: Ducktown, Polk County, Tennessee: Tennessee Chemical ...
Bauxite forms by the weathering of aluminum-rich and silica-poor rocks in hot, humid, climates, at places with good drainage. Under the proper conditions, weathering disintegrates the aluminium silicate minerals, and dissolves and removes the silica, creating bauxite. The mined US bauxite deposits have all been in the southeastern United States.
US production of aluminum, 1940–2014. Data from USGS. The aluminum industry in the United States in 2023 produced 860 thousand metric tons of aluminum from refined metal ore (primary production), at six smelters. In addition, US industry recycled 3.4 million tons of aluminum (so-called secondary production aluminum). [1]
In 2008, Chevron sold the mine to privately-held Molycorp Minerals LLC, a company formed to revive the Mountain Pass mine. Molycorp announced plans to spend $500 million to reopen and expand the mine, and on July 29, 2010, it raised about $400 million through an initial public offering , selling 28,125,000 shares at $14 under the ticker symbol ...