FLUORITE

flooˈərīt or fluorsparflooˈərspär, mineral appearing in various colors, e.g., green, yellow-brown, rose, and red. Chemically, it is calcium fluoride, CaF2. Its crystals, commonly cubic, are transparent or translucent and under certain conditions exhibit fluorescence. The mineral also occurs in granular and massive forms. Fluorite is found in various parts of the world, especially in England, Germany, Mexico, and in Kentucky and Illinois in the United States. Its chief use is as a flux in metallurgy, but it is also employed in the preparation of hydrofluoric acid and in the manufacture of opal glass and enamel; some of its colorless crystals are used for making lenses and prisms.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Fluorite
We found: 163 results
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125  

 

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4  

 

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books on: Fluorite  - 125 results

       More book Results: 1-10 11-20 21-30 31-40 41-50 >>  
 
1.
From the Life of a Researcher
Book by William Weber Coblientz; Philosophical Library, 1951
Subjects: Coblientz, William W--(William Weber)--1873-1962
2.
Earth Science Demystified
Book by Linda Williams; McGraw-Hill, 2004
Subjects: Earth Sciences--Popular Works
3.
The Ascent of Chiefs: Cahokia and Mississippian Politics in Native North America
Book by Timothy R. Pauketat; University of Alabama Press, 1994
Subjects: Cahokia Mounds State Historic Park (Ill.), Chiefdoms, Mississippian Culture
...Other Tools 149 6.3. Large Bifacial Chert Adze Blades and Ramey Knives 150 6.4. Quartz, Fluorite, and Plagioclase Crystals 156 6.5. Paried One-Tailed t -tests of Galena and Hematite 158...
4.
The Physics of Experimental Method
Book by H. J. J. Braddick; Chapman & Hall, 1954
Subjects: Physics--Laboratory Manuals
5.
Principles of Field and Mining Geology
Book by James Donald Forrester; J. Wiley & Sons, Inc., 1946
Subjects: Geology--Field Work, Mining Geology
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journal articles on: Fluorite  - 4 results

 
 
1.
Cultural Collecting Fever in New Mexico: Figurines and Governor L. Bradford Prince
Journal article by Patricia Fogelman Lange; Journal of the Southwest, 1998
Subjects: Art, Art reproductions, Art--Reproduction, Native American art--Research, Native Americans, Native North Americans
...case. Such fetishes have been seen on altars at Hopi and Zuni. Jeancon (1923: plate 56), pictured fetishes made from gypsum, fluorite, pottery, selenite crystal, and even from black earth and grease. In "New Mexico Stone Idols" (SR AC), Prince described the...
2.
North Korean Chuch'E: the Political Economy of Independence
Journal article by Gordon White; Bulletin of Concerned Asian Scholars, Vol. 7, 1975
Subjects: Asia
...the world in both available deposits and production of such crucial minerals as gold, tungsten, magnesite, molybdenum and fluorite. It also has substantial deposits of asbestos, aluminum, chromium, copper, lead, silver, zinc, nickel, iron ore and coal...
3.
Commentary: Neandertals and the Thyroid Gland; the Selenium Connection
Journal article by Harold D. Foster; The Geographical Review, Vol. 92, 2002
Subjects: Neanderthals--Physiological aspects, Thyroid diseases
...famous "Derbyshire neck," an enlargement of the thyroid gland that looks like a swollen neck, formerly found in inhabitants of fluorite (calcium fluoride) areas in central England (Hetzel 1989). Indeed, it has been argued that, in China, goiter is promoted by...
4.
Running on Empty Mongolia's Economic Crash
Journal article by Aaron Mattis; Harvard International Review, Vol. 31, 2009
Subjects: Economic conditions--Forecasts and trends, External debts--Forecasts and trends, Mongolia--Economic aspects, Mongolia--International aspects, Mongolia--Natural resources, Mongolia--Political aspects
...Mongolia has one way out of this downward cycle of poverty: resource development. Vast unexplored reserves of gold, copper, coal, fluorite, and uranium continue to intrigue international investors. Chief among these untapped reserves is the Oyu Tolgoi mine, which...


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magazine articles on: Fluorite  - 9 results

       More magazine Results: 1-9 >>  
 
1.
Homemade Titanium
Magazine article by Theodore Gray; Popular Science, Vol. 274, January 2009
Subjects: Aluminum powders, Iron
...huge amounts of extra heat, enough to melt the titanium and allow it to pool at the bottom of the container. Adding ground fluorite powder makes the molten metals more fluid and protects the titanium from airas it cools. I used clay flowerpots, as suggested...
2.
The Elegant Stone
Magazine article by Parvinder Sethi; World and I, Vol. 15, April 2000
Subjects: Marble sculpture--Analysis, Sand and gravel industry--History, Sand, gravel and stone industry--History, Stone industry--History
...and plant and animal remains produce shades of dark gray to almost black. Other minor constituents of marbles can include fluorite, apatite, brucite, laumontite, olivine, scheelite, spinel, zoisite, and magnetite. In some cases, banding in the marble derives...
3.
Special Focus on African Oil and Minerals
Magazine article by Guy Arnold; African Business, April 1995
Subjects: Africa--Natural resources, Mineral deposits--Economic aspects, Mines and mineral resources--Economic aspects, Mining--Economic aspects, Mining--Nutritional aspects, Natural resource policy
...single site near Namapa, and confirmed resources of 60bn cu m of natural gas. It has ilmenite, bauxite, manganese, graphite, fluorite, platinum, nickel, uranium, asbestos, diamonds and gold. US, French, German and South African companies are currently prospecting...
4.
A Night Out
Magazine article by Harriette Cole; Ebony, Vol. 64, December 2008
Subjects: Clothing, Clothing and dress
...drama to both of your looks--a fitted jacket with shine for him, a plunging V-neck pleated dress for her. On Grisel: Rainbow fluorite and amethyst stone earrings, Siman Tu, $405, simantu.com. Fontenay dress in violet, $640, nolita.it. Nicole Farhi velvet sash...
5.
Not Just a Hole in the Ground
Magazine article by Trevor D. Ford; World and I, Vol. 15, December 2000
Subjects: Caves--Discovery and exploration
...that lead to ore formation. The cave walls, roof, and floor may then be coated with minerals such as galena (lead sulfide), fluorite (calcium fluoride), barite (barium sulfate), and quartz (silicon dioxide). Some caves are filled completely, yielding irregular...
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newspaper articles on: Fluorite  - 14 results

       More newspaper Results: 1-10 11-14 >>  
 
1.
Miners Were Searching for Crystals and Lead
Newspaper article; The Journal (Newcastle, England), November 1, 2004
...mineral-rich fluids which cooled to form veins of lead ore, zinc, fluorite, quartz, baryte, witherite, calcite, limonite and pyrite...a folk craft in the mining community. The beauty of, say, fluorite which can be purple, plum, green, amber, or colourless or a...
2.
Some New Candidates, Warts and All, Campaign for State Office
Newspaper article; Daily Herald (Arlington Heights, IL), September 14, 2004
...have felt in 1965 covering the moment when fluorite became our state mineral. Quinn suspects the fluorite lobby may have played a role in that designation...a list that includes the aforementioned fluorite as our state mineral, the cardinal as our...
3.
Trapped Miner Is Rescued from Pit
Newspaper article; The Journal (Newcastle, England), August 30, 2004
...maker Byron Weege was rescued 250 yards inside the Rogerley Mine, near Frosterley, County Durham, where he was foraging for fluorite crystals with two colleagues. He was pinned down after a rockslide in the abandoned limestone quarry, breaking his left leg...
4.
Trapped Miner Rescued
Newspaper article; Evening Chronicle (Newcastle, England), August 30, 2004
...Weege became trapped 250 yards inside the Rogerley Mine, near Frosterley, 20 miles from Durham City. He had been foraging for fluorite crystals with two colleagues but was pinned down by a rockslide in the abandoned limestone quarry, breaking his left leg...
5.
Dishing the Dirt on Proposed Bill for 'Official Soil' in Illinois
Newspaper article; Daily Herald (Arlington Heights, IL), February 19, 2001
...chosen by schoolchildren, but its possible. The state mineral is fluorite, chosen in 1965, because the state is the largest producer of the mineral in the United States. Fluorite "is used in making steel, enamels, aluminum, glass and many chemicals...
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encyclopedia articles on: Fluorite  - 11 results

       More encyclopedia Results: 1-10 11-11 >>  
 
1.
Fluorite
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
FLUORITE floo rit or fluorspar floo rspar, mineral appearing in various colors, e.g., green, yellow-brown, rose, and red...or translucent and under certain conditions exhibit fluorescence. The mineral also occurs in granular and massive forms. Fluorite is found in various parts of the world, especially in England, Germany, Mexico, and in Kentucky and Illinois in the United...
2.
Spar
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
SPAR For dogtooth spar, see calcite ; for fluorspar, see fluorite ; for heavy spar, see barite ; for satin spar, see calcite and gypsum . See also Iceland spar and feldspar...
3.
Fluorspar
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
FLUORSPAR see fluorite . ____________________ Copyright 2009 Columbia University Press. Used with the permission of Columbia University Press. All rights reserved.
4.
Gangwon
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...after the Korean War truce of 1953 much of the province returned from North to South Korean rule. Mining (iron, coal, tungsten, fluorite), farming, and fishing are chief economic activities in the province. ____________________ Copyright 2009 Columbia University...
5.
Fluorine
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...potassium hydrogen fluoride. The mineral fluorite , or fluorspar (calcium fluoride), is...fluorine lies largely in its compounds. Fluorite is used as a flux in refining iron; cryolite...antisoil properties to textiles. The use of fluorite as a flux was described in 1529 by Georgius...
More encyclopedia Results: 1-10 11-11 >>

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