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Origin of the bedding replacement deposits of fluorspar in ...

The banded fluorspar deposits of the Cave In Rock district are attributed to replacement of limestone and the preservation of bedding and cross-bedding of the rock. The solutions contained hydrofluoric acid which reacted with CaCO 3 . The replacement was stoichiometrical, with consequent reduction of volume, but continued deposition of calcium ...

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A New Classification Scheme of Fluorite Deposits

of the viability for individual deposits. Origin of the individual fluorite deposit based on fluid inclusion and geochemistry has been carried out by a number of workers [4] [5] [6]. In the last few years, geoscientists all around the world have paid more atten-tion to the metalliferous deposits in general and strategic minerals in particular.

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Fluorspar Definition of Fluorspar at Dictionary

Fluorspar definition, fluorite. See more. ... a white or colourless mineral sometimes fluorescent and often tinted by impurities, found in veins and as deposits from hot gases.

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(PDF) A New Classification Scheme of Fluorite Deposits

A New Classification Scheme of Fluorite Deposits. ... Le Burc, MontrocLe Moulinal and Trebas deposits (France) and Amba Dongar (India) and hence the origin of these deposits has been discussed [9] [10] [11]. However, ... Genesis of the St. Lawrence fluorspar deposits as indicated by fluid inclusion, rare earth element, and isotopic data. Article.

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Fluorite Definition of Fluorite at Dictionary

Fluorite definition, a common mineral, calcium fluoride, CaF2, occurring in green, blue, purple, yellow, or colorless crystals, usually in cubes: the principal source of fluorine, used also as a flux in metallurgy and for ornament. See more.

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Fluorspar Deposits of the Eagle Mountains Trans-Pecos Texas

FLUORSPAR DEPOSITS OF THE EAGLE MOUNTAINS, TRANS-PECOS TEXAS By ELLIOT GILLERMAN ABSTRACT The Eagle Mountains are in the southeastern part of Hudspeth County, Tex., about 17 miles southwest of Van Horn and 100 miles southeast of El Paso, Tex. The fluorspar deposits are in the northern and northeastern parts of the moun­

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A New Classification Scheme of Fluorite Deposits

The identities and the proportions of these other minerals, and the ease with which they can be separated from the fluorite, are important determinants of the viability for individual deposits. Origin of the individual fluorite deposit based on fluid inclusion and geochemistry has been carried out by a

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Western Kentucky Fluorspar District, Kentucky Geological ...

The Kentucky portion of this district is called the Western Kentucky Fluorspar District. Until the 1970s, more than three-fourths of the fluorspar produced in the United States came from the Illinois-Kentucky Fluorspar District, which was the largest producer of fluorite in the United States during World War II.

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Fluorspar Deposits Near Meyers Cove Lemhi County, Idaho

Fluorspar deposits near Meyers Cove, Lemhi County, Idaho By D. C. Cox ABSTRACT The fluorspar deposits near Meyers Cove, Lemhi County, Idaho, are localized along three groups of shear zones: one group strikes northeast and dips steeply northwestward, another strikes northeast and dips gently northwestward, and

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Origin and occurrence of fluorine - Wikipedia

Fluorite (CaF 2), also called fluorspar, is the main source of commercial fluorine. Fluorite is a colorful mineral associated with hydrothermal deposits. It is common and found worldwide. China supplies more than half of the world's demand and Mexico is the second-largest producer in the world

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fluorspar deposits replacement

FLUORSPAR DEPOSITS Fluorite has been deposited under a wide range of chemical and physical conditions in a variety of geologic environments. The dominant commercial sources are from deposits of hydrothermal origin. The most common are veins, mantos (replacement strata-bound deposits), or

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World fluorspar resources, market and deposit examples ...

fluorspar prices in early 1990’s and to finance development of new fluorspar deposits. World-scale economic slowdown may result in decreased demand for fluorspar and cause corresponding price adjustments but it is highly unlikely that fluorspar production will go down to 1994 levels (3.75 million

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"Fluorspar Deposits at Okorusu, North-Central Namibia ...

Two fluorspar deposits that have not previously been considered to be of carbonatite origin have been interpreted by the present writer (Hagni, 2015) to exhibit mineralogical and geochemical characteristics of an origin connected them to carbonatites.

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Fluorspar / Fluorite - Buy Fluorspar Lumps Product on ...

Fluorspar is found in granite (igneous rock), it fills cracks and holes in sandstone, and it is found in large deposits in limestone (sedimentary rock). The term fluorspar, when used as a commodity name, also refers to calcium fluoride formed as a by-product of industrial processes. Fluorspar is relatively soft, number 4 on Mohs' scale of hardness.

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Origin and age of rift related fluorite and manganese ...

Origin and age of rift related fluorite and manganese deposits from the ... The metal contents of the manganese oxides support the hydrothermal origin of the ore deposits that in some ... G.S. Plumlee, M.B. Goldhaber, E.L. RowanThe potential role of magmatic gases in the genesis of Illinois–Kentucky fluorspar deposits: implications from ...

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Origin and age of rift related fluorite and manganese ...

Read "Origin and age of rift related fluorite and manganese deposits from the San Rafael Massif, Argentina, Ore Geology Reviews" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Bulletin 67 Mineral Deposits of Lincoln County New Mexico

MINERAL DEPOSITS OF LINCOLN COUNTY 3 iron and fluorspar. The results of these investigations are discussed by Rothrock et al. (1946), Sheridan (1947), Soule (1947, 1949), and Kelley (1949). These studies were drawn upon freely for the descriptions of the various iron and fluorspar deposits contained herein. ACKNOWLEDGMENTS

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Tosudite-bearing Clay Associated with Fluorspar Deposits ...

Until recent years, little doubt has been expressed as to the genesis of the fluorspar deposits of the Igashima mine, that the deposits were of contact-metasomatic origin, connected genetically with granitic rocks of pre-Neogene, probably Cretaceous or early Pala-

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Fluorite deposition in hydrothermal systems - ScienceDirect

Other deposits, such as the Mex- Tex deposits in New Mexico and the fluorspar depo- sits of Northern Coahuila, Mexico, occur in virtually undolomitized limestone. It is therefore unlikely that dolomitization of limestone host rock has been a major factor in the deposition of fluorite in any of these fluorspar deposits.

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ARIZONA FLUORSPAR - AZ

The principal Arizona fluorspar deposits are veins of hydrothermal origin which may be epithermal or mesothermal. The epithermal deposits are associated with Tertiary volcanism, and were formed near the surface under low temperature and moderate pressure. Deposits formerly mined northeast of

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What is a Mineral Deposit by Definition

The expression mineral deposits is conveniently used to cover both metal ores and other valuable minerals. In the discussion of mineral deposits it is usual to include certain minerals of commercial value, such as talc, barite, apatite, feldspar, and fluorspar, which are not used as sources of metals.

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STATE OF NEV

The fluorspar deposits of Nevada may be subdivided on the basis of their mode of occurrence, age of mineralization, and geographic distribution^ For purposes of discussion the fluorspar deposits have been divided into "meso- thermal" and "epithermal" types. This classification is tenta ive pending ad

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Metadata - Utah

Uraniferous fluorspar deposits of Tertiary age are found mainly in Upper Ordovician and Middle Silurian dolomites. These fluorspar deposits, regarded as epi-thermal in origin, occur predominantly as breccia pipes in dolomite adjacent to faults and intrusive rhyolite breccia bodies. Minor occurrences are veins in dolomite, disseminations in ...

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Geology and Flourspar Deposits of the St. Peters Dome ...

Timberline, Duffields, and Mattie B. deposits. The fluorspar is known to occur through a vertical . range of more than 600 feet, and as the deposits are discon­ tinuous vertically as well as horizontally, fluorspar bodies . probably exist that do not crop out.

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Sulfur, fluorspar, magnesite, and aluminous chromite in ...

Reports and analyses on elemental sulfur, fluorspar, magnesite, and aluminous chromite were reviewed for the purpose of identifying and categorizing the known deposits, and to indicate those which seem to merit further study on the basis of available information. General conclusions drawn from the study are: (1) Although aluminous chromite ...

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(PDF) Information Circular 2009­4 World fluorspar ...

The Shizhuyuan deposit, China, is a world-class W-Sn-Bi-Mo-F skarn deposit hosted by Devonian limestone in the thermal aureole of the Qianlishan granite complex. The Qianlishan co

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The Fluorspar Deposits of Southern Illinois - Harry Foster ...

The Fluorspar Deposits of Southern Illinois, Issues 255-259 Issue 255 of Bulletin, Geological Survey (U.S.). Volume 50 of Series A--Economic geology Volume 62 of Series B--Descriptive geology The Fluorspar Deposits of Southern Illinois, Harry Foster Bain Issue 255 of U.S. Geological Survey bulletin

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The fluorspar deposits of Hardin and Pope Counties ...

Introduction --Vein deposits --Blanket deposits --Origin of the fluorspar deposits --Mine data, blanket deposits --Mining and milling --marketing, uses, and production of fluorspar. Series Title: Bulletin (Illinois State Geological Survey) , no. 58.

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Illinois-Kentucky Fluorspar District, USA

Currier, L.W. (1937) Origin of the bedding replacement deposits of fluorspar in the Illinois field: Economic Geology: 32 (3): 364-386. Hatmaker, P., and Davis, H.W. (1938) The fluorspar industry of the United States with special reference to the Illinois-Kentucky District.

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Full text of "The fluorspar deposits of southern Illinois"

Full text of "The fluorspar deposits of southern Illinois" See other formats ...

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Fluorspar dictionary definition fluorspar defined

fluorspar definition: fluorite... ... Thenard and is best obtained by heating a mixture of the trioxide and fluorspar with concentrated sulphuric acid.

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Geology and mineralization of the Minerva Mine No. 1 ...

Geology and mineralization of the Minerva Mine No. 1, Hardin County, Illinois ... Origin of Ore end Faotors oontrolling Iner. 1. ... fluorspar deposits and took xoept10n to Bastin' theory of "diffusion banding" for the development of the "ooon-tail" ( 5) ore. In 1937.

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Stylolites of diagenetic age and their role ... - SpringerLink

Stylolites of diagenetic age and their role in the interpretation of the southern Illinois fluorspar deposits. Authors; ... of stylolite seams in the carbonate host rocks and fluorite-sphalerite bearing rocks of the southern Illinois fluorspar district indicate that ... Origin of the amphibole asbestos deposits of South Africa. Trans. Geol ...

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Wagon Wheel Gap Fluorspar Mine (MRDS #10014057) F

wagon wheel gap fluorspar mine. ... e.f., 1934, fluorspar deposits in western united states: aime trans., v. 109, p. 370-396. deposit. emmons, w.h., and larsen, e.s., 1913, the hot springs and mineral deposits of wagon ... subparallel fractures dipping 70 to 80 se along east margin of creede caldera in volcanics believed to be of local origin.

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Fluorite from India - Mindat.org

Lahiry (1976) Fluorspar deposits of India. Indian National Science Academy Journals Vol 42A:4 pp263-270 ⓘ Kaila; Lahiry (1976) Fluorspar deposits of India. Indian National Science Academy Journals Vol 42A:4 pp263-270 ⓘ Samotha; Lahiry (1976) Fluorspar deposits of India. Indian National Science Academy Journals Vol 42A:4 pp263-270 ⓘ Thorwali

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Geologic characteristics of fluorspar deposits in the ...

A geologic study of fluorspar deposits in the Cordilleran region of the United States is presented in an effort to summarize mineralogical, structural and regional characteristics. Account is taken of the geochemistry of fluorine and comparison is made with fluorspar deposits in other areas.

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The early proterozoic Mississippi Valley ... - SpringerLink

In an environment characterised by tensional tectonics and basin development, brines of basinal origin were heated by circulation into pre-Chuniespoort rocks, leached metals from the rocks they permeated, and rose as hydrothermal plumes. At relatively shallow depth they deposited minerals after mixing with water of surficial origin.

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