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Publications

Results from our Program’s research and minerals information activities are published in USGS publications series as well as in outside journals.  To follow Minerals Information Periodicals, subscribe to the Mineral Periodicals RSS feed.

Filter Total Items: 2294

The Nation's top 25 construction aggregates producers

U.S. production of construction aggregates in 2011 was 2.17 billion short tons, valued at $17.2 billion, free on board (f.o.b.) at plant. Construction aggregates production decreased by 37 percent, and the associated value decreased by 25 percent, compared with the record highs reported in 2006. In 2011, construction aggregates production increased for the first time since 2006, owing to a very sl
Authors
Jason Christopher Willett

Geologic occurrences of erionite in the United States: an emerging national public health concern for respiratory disease

Erionite, a mineral series within the zeolite group, is classified as a Group 1 known respiratory carcinogen. This designation resulted from extremely high incidences of mesothelioma discovered in three small villages from the Cappadocia region of Turkey, where the disease was linked to environmental exposures to fibrous forms of erionite. Natural deposits of erionite, including fibrous forms, hav
Authors
Bradley S. Van Gosen, Thomas A. Blitz, Geoffrey S. Plumlee, Gregory P. Meeker, M. Patrick Pierson

Local-area-enhanced, 2.5-meter resolution natural-color and color-infrared satellite-image mosaics of the Parwan mineral district in Afghanistan: Chapter CC in Local-area-enhanced, high-resolution natural-color and color-infrared satellite-image mosaic

The U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Defense Task Force for Business and Stability Operations, prepared databases for mineral-resource target areas in Afghanistan. The purpose of the databases is to (1) provide useful data to ground-survey crews for use in performing detailed assessments of the areas and (2) provide useful information to private investors w

Authors
Philip A. Davis

Geochronologic and geochemical data from Mesozoic rocks in the Black Mountain area northeast of Victorville, San Bernardino County, California

We present geochronologic and geochemical data for Mesozoic rocks in the Black Mountain area northeast of Victorville, California, to supplement previous geologic mapping. These data, together with previously published results, limit the depositional age of the sedimentary Fairview Valley Formation to Early Jurassic, refine the ages and chemical compositions of selected units in the overlying Jura
Authors
Paul Stone, Andrew P. Barth, Joseph L. Wooden, Nicole K. Fohey-Breting, Jorge A. Vazquez, Susan S. Priest

Zirconium

Zirconium is the 20th most abundant element in the Earth’s crust. It occurs in a variety of rock types and geologic environments but most often in igneous rocks in the form of zircon (ZrSiO4). Zircon is recovered as a coproduct of the mining and processing of heavy mineral sands for the titanium minerals ilmenite and rutile. The sands are formed by the weathering and erosion of rock containing zir
Authors
G. M. Bedinger

Titanium

Titanium is the ninth most abundant element in the earth’s crust and can be found in nearly all rocks and sediments. It is a lithophile element with a strong affinity for oxygen and is not found as a pure metal in nature. Titanium was first isolated as a pure metal in 1910, but it was not until 1948 that metal was produced commercially using the Kroll process (named after its developer, William Kr
Authors
G. M. Bedinger

Strontium

In 2012, U.S. apparent consumption of strontium (contained in celestite and manufactured strontium compounds) decreased to 16.7 kt (18,400 st) from 17.3 kt (19,100 st) in 2011. Gross weight of imports was 34.3 kt (37,800 st), 86 percent of which originated in Mexico.
Authors
J.A. Ober

Rare earths

Global mine production of rare earths was estimated to have declined slightly in 2012 relative to 2011 (Fig. 1). Production in China was estimated to have decreased to 95 from 105 kt (104,700 from 115,700 st) in 2011, while new mine production in the United States and Australia increased.
Authors
J. Gambogi

Pumice and pumicite

Production of pumice in the United States during 2012 was estimated to be 515 kt (568,000 st), a 5-percent increase compared to 2011. The unit value of pumice varied widely by end use in 2012. Pumice used as an abrasive was priced at $10.30/t ($9.34/st), while specialty-grade pumice, used in cosmetics, filtration or precision grinding, could be priced as high as $400/t ($360/st) on a spot basis. E
Authors
R.D. Crangle

Potash

In 2012, world potash production, consumption and sales decreased from 2011. High inventories of potash, primarily in China and India, forced major producers to reduce output in 2012. U.S. production was estimated to have decreased to 900 kt (990,000 st) potassium oxide (K2O) in 2012 from 1 Mt (1.1 million st) K2O in 2011. World production was estimated to have decreased to 34 Mt (37 million st) K
Authors
S.M. Jasinski

Perlite

Domestic production and prices of crude processed perlite in the United States were estimated to have increased in 2012 compared with 2011. Perlite trade, both imports and exports, slowed in 2012 compared with 2011. With imports of perlite down by about 13 percent and domestic production up slightly, the balance resulted in a consumption decrease of about 20 kt (22,000 st). The estimated amount of
Authors
W.P. Bolen