Apatite: Properties, Occurrence, Uses » Geology Science

Apatite is a group of phosphate minerals that can be classified based on the halide component present in their structure. The main types of apatite are: 1. Fluorapatite (Ca₅(PO₄)₃F) 1.1. Chemical Composition:Calcium phosphate with fluoride (F) as the halide. 1.2. Characteristics: Fluorapatite is the most common form of apatite f…

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PHOSPHATE ROCK.

The deposits of phosphate rock in the United States are confined very definitely to the southeastern part of the country and to the 57. . 58 OUR MINERAL SUPPLIES. Bocky Mountain region from the latitude of Salt Lake City, Utah, ... phate hard rock, land pebble, and river pebble. The hard rock is the highest grade, the land pebble is produced in ...

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SELECTED ANNOTATED BIBLIOGRAPHY ON THE CENTRAL FLORIDA PHOSPHATE …

----- (.0003 to .04%). In the United States, the ores normally contain between 50-200 ppm uranium. In general, the radionuclides are in equilibrium with their decay products, at least through radium-226. Approximately 80 percent of the phosphate rock mined and consumed in the United States is used for the manufacture of fertilizers.

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How the U.S. Can Make the Most of Remaining Domestic

‍United States Phosphorus Production ‍Today, the U.S. produces about 88% of the phosphate rock domestically consumed. The U.S. phosphate reserves are sitting at about 1 billion metric tons or 1.3 or world reserves. The United States' significant phosphate rock deposits are primarily concentrated in Florida and North Carolina.

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Properties, Composition, Uses, Deposits

Phosphorite is a sedimentary rock that contains a high concentration of phosphate minerals.It is the primary source of phosphorus, an essential element for life on Earth. Phosphorite deposits are formed over geological time through the accumulation of marine organic debris and phosphate-rich sediments. These deposits are typically found in marine environments, often …

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Phosphate Rock Properties

In 1957 approximately 3.1 million tons of domestic phosphate rock was used to manufacture phosphoric acid by the wet process in the United States. If the average uranium …

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Briquette of phosphate-rock material and method of making the …

T allioh'o mit may c'bncem 7,Be' it known that 1, JAMES A. BARR, a citizen of the United States, and resident of Mount Pleasant, in the county of Maury and State of Tennessee, have invented certain new and useful Improvements in Briquettes of Phosphate-Rock Material and Methods of Making the Same,- of which the followinglis a specification.v

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Subsidence Over the End of a Longwall Panel

machines. 4. Milling machinery—Materials. 5. Phosphate rock. 6. Phosphoric acid. I. Blickensderfer, Robert. II. Title. III. Title: Wear and corrosion of twelve alloys during laboratory milling of phos­ phate rock in phosphoric acid waste water. IV. Series: Report of in­ vestigations (United States. Bureau of Mines) ; 8919»

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Phosphate Rock

Total U.S. domestic production of phosphate rock was approximately 25,500 million kilograms (M kg) in 2019 (USGS, 2021). Domestic commercial production of phosphate rock takes place in five states within the U.S., with the majority (63%) of operations centered in Florida. All domestic mining operations operate integrated facilities

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(PDF) Global Phosphate Deposits: Geology and Economics

The Tennessee "white rock" and Florida "hard rock" deposits were formed by re-deposition of phosphate derived from the de-composition of apatite under more advanced weathering. The same de-composition-phosphatisation process accounts for the formation of calcium-aluminium phosphate and aluminium-phosphate in the "leached zone" of the Bone ...

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Apatite: Its uses as a mineral and gemstone

The United States, Russia, Morocco, and Western Sahara are also major phosphate producers. Over 75% of the world's reserves of phosphate rock are located in Morocco and Western Sahara. Phosphate rock is the only material that can be used to produce enough fertilizer to satisfy world demand. Without it, farmers would not be able to produce ...

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Phosphate Rock Statistics and Information | U.S.

Phosphate rock minerals are the only significant global resources of phosphorus. The United States is the world's leading producer and consumer of phosphate rock, which is used to manufacture phosphate fertilizers and industrial products.

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2000 FM

Listen online to 2000 FM - Hard Rock radio station for free – great choice for Bothell, United States. Listen live 2000 FM - Hard Rock radio with Onlineradiobox

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Phosphate rock resources of the United States

In 1980, the United States produced about 54 million tons of phosphate rock, or about 40 percent of the world's production, of which a substantial amount was exported, both as phosphate rock and as chemical fertilizer. During the last decade, predictions have been made that easily ruinable, low-cost reserves of phosphate rock would be exhausted, and that by the end of this …

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Discovery of Phosphate in Florida

Some three decades after phosphate rock was first mined in England to be used in fertilizer, Dr. C. A. Simmons, who owned a rock quarry for building stone in Hawthorne, near Gainesville in Alachua County, had some of his rock sent to Washington, D.C. in 1880 for analysis. ... where phosphate was first found in the United States. Rock samples ...

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Bulk Phosphate Shipping

Bulk Phosphate. Phosphate is an important volume commodity, the world's largest exporter being Morocco, and exported in its natural rock condition in large quantities from the South-Eastern United States; North and West Africa (from Tunisia round to Togo); Northern Russia (from which source it is known as Apatite Ore); the Red Sea; and from Christmas Island (Indian Ocean) …

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Exploring Florida Documents: Phosphate

Present production in the United States is confined practically to Florida and Tennessee, although what are believed to be the greatest deposits of phosphate rock yet uncovered in the world have been found in the Rocky Mountain regions of Idaho and Montana. ... It would stern, however, that the time will come when Florida hard phosphate rock ...

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Phosphate Rock

It is found largely as an accessory mineral in granitoid rocks. Its hardness is 4.5 to 5 and its specific gravity is about 3.2.

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Lasky's relationship applied to the western phosphate field / United States

This hypothesis requires empirical testing. The sedimentary phosphate deposits are the predominant supplier of phosphate mineral fertilizer with a share of about 75 % of the world rock phosphate production, whereas the remaining 23 % originate in magmatic deposits and 2 % in guano-type ones (Argus, 2023).

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PHOSPHATE ROCK

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122 PHOSPHATE ROCK

The leading phosphate rock producer in the United States permanently closed a phosphoric acid and fertilizer plant in June 2019 as part of corporate restructuring. The facility had been idled since 2017 and the phosphate rock mine that supplied the plant closed in late 2018. Another company planned to use the facility to manufacture organic ...

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Aggregate Hardness Map of the United States

The following minerals are used as standards: 1 Talc, 2 Gypsum, 3 Calcite (soft limestone), 4 Fluorite, 5 Apatite, 6 Feldspar (some river rock, some type of granite), 7 Quartz (some river rock ...

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Phosphate deposits of the United States

Different types of phosphate deposits and different sources of phosphate in the United States are briefly discussed. In Florida two types of phosphate are now mined, land pebble and hard rock. The principal characteristics of these types of rock are stated and methods of prospecting, mining and recovery briefly outlined. Testimony given before the Congressional Committee to …

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Phosphate Uses

Soft rock deposits are known to contain heavy metals such as cadmium and uranium while hard rock ores are generally higher in purity. Phosphate rock is on the Critical Materials list in the European Union and in the Province of Ontario. It is currently under review in the Province of Quebec, in Canada, in the United States and around the world ...

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Statistical Compendium | U.S. Geological Survey

Phosphate rock exports peaked in 1980 at 14 million metric tons and has declined to 6 million metric tons in 1990. Phosphate rock imports have historically been a minor factor in supply; however, in addition to small quantities of low-fluorine materials, phosphate rock imports in recent years increased to the .5-million-metric-ton level.

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Lazulite

Lazulite: Quick Facts and Characteristics Some quick facts for Lazulite: Transparency: Lazulite can be opaque, translucent or transparent. Crystallography: In terms of crystallography, lazulite is monoclinic. Luster: In terms of luster, lazulite can be dull or vitreous (glassy). Streak: Lazulite streaks white. Hardness: Lazulite's hardness ranges from 5.5 to 6 on the Moh's scale.

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Quality of Phosphate Rocks from Various Deposits Used in Wet …

The accuracy and precision of the used methods were evaluated by analysis of standard reference materials (SRM) for Western Phosphate Rock (NIST 694). The recovery was 85.3% for U and 109% for K 2 O, and the RSD ranged from 0.67% to 12.8%. Keywords: phosphate rock, wet phosphoric acid, phosphate fertilizers, elemental analysis. 1. Introduction

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Phosphate-Rock Resources of the United States

Phosphate Rock Resources of the United States By JAMES B. CATHCART, RICHARD P. SHELDON, and ROBERT A. GULBRANDSEN ABSTRACT In 1980, the United States …

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Phosphate Rock

Phosphate Rock historical statistics data table (.XLSX format) 2022 update for USGS Data Series 140 - Historical Statistics for Mineral and Material Commodities in the …

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Phosphate deposits of the United States | Economic Geology

Different types of phosphate deposits and different sources of phosphate in the United States are briefly discussed. In Florida two types of phosphate are now mined, land pebble and hard rock. The principal characteristics of these types of rock are stated and methods of prospecting, mining and recovery briefly outlined.

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