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barite
barite , barytes [New Lat., from barium], or heavy spar, a white, yellow, blue, red, or colorless mineral. It is a sulfate of barium, BaSO 4 , found in nature as tabular crystals or in granular or massive form and has a high specific gravity. The mineral is widely distributed throughout the... Read more |
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Cuddapah
Cuddapah , city (1991 pop. 121,422), Andhra Pradesh state, S central India. It is a district administrative center and a market for peanuts, cotton, and melons. Paint and varnish are manufactured, and barite is processed. The city was part of the Chola empire (11th-15th cent.). Muslims conquered it... Read more |
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Industrial minerals
Industrial minerals The term industrial minerals is used to describe naturally occurring nonmetallic minerals that are used extensively in a variety of industrial operations. Some of the minerals commonly included in this category include asbestos, barite, boron compounds, clays, corundum,... Read more |
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barium
barium [Gr.,=heavy], metallic chemical element; symbol Ba; at. no. 56; at. wt. 137.33; m.p. 725°C; b.p. 1,640°C; sp. gr. 3.5 at 20°C; valence +2. Barium is a soft, silver-white, chemically active, poisonous metal with a face-centered cubic crystalline structure. It is an alkaline-earth... Read more |
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hardness
hardness property of matter commonly described as the resistance of a substance to being scratched by another substance. The degree of hardness is relative, different substances being compared with one another. Mohs's scale of hardness (named for Friedrich Mohs), used commonly in mineralogy, lists... Read more |
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sulfate
sulfate chemical compound containing the sulfate (SO 4 ) radical . Sulfates are salts or esters of sulfuric acid , H 2 SO 4 , formed by replacing one or both of the hydrogens with a metal (e.g., sodium) or a radical (e.g., ammonium or ethyl). Sulfates in which both hydrogens are replaced are... Read more |
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Colorado River (North America)
Colorado River Basin Located in the southwestern United States and northwestern Mexico, the Colorado River is a 2,330-kilometer (1,450-mile) river with its headwatersin the Rocky Mountain National Park in north-central Colorado. The river is the primary source of water for a... Read more |
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Colorado State University
Colorado State University at Fort Collins; land-grant with state and federal support; chartered 1870, opened 1879 as an agricultural college, assumed present name in 1957. There is a veterinary teaching hospital, an agricultural campus, and a research campus. The Rocky Mt. Forest and Range... Read more |
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University of Colorado
University of Colorado main campus at Boulder; state supported; coeducational; chartered 1861, opened 1877. There are campuses at Colorado Springs and Denver; the Health Sciences Center, with a large medical center, is also at Denver. The university also operates the High Altitude Observatory at... Read more |
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Colorado School of Mines
Colorado School of Mines at Golden; state supported, coeducational; chartered 1874. It was one of the first mineral engineering schools in the United States. It owns extensive experimental and research facilities, field laboratories, and an experimental mine at Idaho Springs. Bibliography:... Read more |
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Colorado Barite and associated minerals from Weld and Mesa counties and...
Of the many localities for barite in Colorado, three have yielded specimens...the high plains of northeastern Colorado. The spectacular groups of blue...Junction in Mesa County, western Colorado, has been known since the 1940s... |
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New operations at Sweet Home mine: 1990-1997.(The Sweet Home Mine, Park...
...in August of 1994 and 1995, to Colorado to learn the collecting tale in...Edge Minerals, Inc. in Golden, Colorado. The first glimmers occurred...Dennis Wilson) the Stoneham, Colorado, blue barite locality. One night while Bryan... |
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Denver Show 2002. (What's New in Minerals).
...the Denver home-front, which is to say, Colorado: Of the many localities in Colorado for fine barite, the sedimentary strata at Book Cliffs...the very best specimens. "Book Cliffs" barite has been known for quite some time (see... |
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What's new in minerals: Denver Show 2002
...the Denver home-front, which is to say, Colorado: Of the many localities in Colorado for fine barite, the sedimentary strata at Book Cliffs...the very best specimens. "Book Cliffs" barite has been known for quite some time (see... |
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New operations at the Sweet Home mine, 1990-1997
...in August of 1994 and 1995, to Colorado to learn the collecting tale in...Edge Minerals, Inc. in Golden, Colorado. The first glimmers occurred...Dennis Wilson) the Stoneham, Colorado, blue barite locality. One night while Bryan... |
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Died, Harvey Gordon, 74.(Notes from the Editors)(Obituary)
...In 1998, Harvey brought a suite of Meikle mine (Nevada) barites, among the finest for the species, to the main Tucson Show...at a number of localities throughout the west, including Colorado for rhodochrosite, Idaho for barite, and his home state of Nevada for a variety of ... |
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Collector profile: Martin Zinn III
...promising property near Florissant, Colorado, and worked it quite successfully...Jesseville, Arkansas; blue barite at Stoneham, Colorado; pyrite at the Dallas-Fort...Russia, Pakistan, India, and Colorado specimens. A particular specialty... |
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Collector profile: Martin Zinn III.
...promising property near Florissant, Colorado, and worked it quite successfully...Jesseville, Arkansas; blue barite at Stoneham, Colorado; pyrite at the Dallas-Fort...Russia, Pakistan, India, and Colorado specimens. A particular specialty... |
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Minerals from the Topeka-Kentucky Giant and Indiana veins, Ouray County,...
...Mountain in Ouray County, Colorado, has recently yielded specimen...recently been sealed under the Colorado Mined Land Reclamation program...Anatase is an uncommon species in Colorado. Three earlier reports of...brookite, and rarely with barite and pyrite. ... |
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Cyprus Minerals to purchase Colorado Westmoreland.
...Valley mine, and our other Colorado coal mines, the Twentymile...increase our ability to supply Colorado utilities. We are working...costs to customers outside Colorado. We believe Orchard Valley...molybdenum, lithium, talc, barite, and is a growing ... |
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