Apatite - Wikipedia

This is preferable to traditional rare-earth ores, as apatite is non-radioactive and does not pose an environmental hazard in mine tailings. However, some apatite in Florida used to produce phosphate for agriculture does contain uranium, radium, lead-210, polonium-210, and radon. Apatite...

Apatite and Rock Phosphate | Nova Mining

Jul 19, 2014 ... It also occurs in metamorphic rocks and as a secondary mineral in phosphatic rocks of sedimentary origin. Rock phosphates (or phosphorites) are sedimentary phosphatic deposits comprising fine grained mixture of various calcium phosphates, most important being hydroxyl-apatite, carbonate-apatite,...

Apatite: Its uses as a mineral and gemstone - Geology.com

Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. Apatite has a relatively consistent hardness and serves as the index...

Phosphate Deposits

(Oakley, 1955; Weiner and others, 1953). Apatite is the principal primary mineral, but a number of others are common in deposits formed during weathering of phosphate. *In the trade the phosphate content of phosphate rock and fertilizer is commonly re- ported as Ca3(PO4>2, known as bone phosphate of lime (B.P.L.).

Apatite: The mineral apatite information and pictures - Minerals.net

Apatite is named for the Greek word apate, which means "deceit", since Apatite is similar in appearance to many other minerals. Apatite describes a group of similar isomorphous hexagonal phosphate minerals. The primary Apatite group includes Fluorapatite, Chlorapatite, and Hydroxylapatite. The extended Apatite...

Siilinjärvi Phosphate Mine

Yara Siilinjärvi site. • Production units: • Phosphate mine. • Sulphuric acid and phosphoric acid plants. • Nitric acid plant and fertilizer plant. • Delivers: • Fertilizers. • Phosphoric acids. • Apatite concentrate. • Number of employees: • 600 including contractors. • Important employer locally...

Apatite and Rock Phosphate - Indian Bureau of Mines

Nov 3, 2015 ... Apatite is the most abundant crystalline phosphate mineral found as an accessory mineral in practically all kinds of igneous rocks. Sometimes, it is concentrated in pegmatites, metallic veins and magmatic deposits. It also occurs in metamorphic rocks and as a secondary mineral in phosphatic rocks of...

Mineral Resource of the Month: Phosphate Rock | EARTH Magazine

As a mineral resource, “phosphate rock” is defined as unprocessed ore and processed concentrates that contain some form of apatite, a group of calcium phosphate minerals that is the primary source for phosphorus in phosphate fertilizers, which are vital to agriculture.

The Versatile Apatite Mineral Group - Thermo Fisher Scientific

May 20, 2014 ... Apatite refers to a group of phosphate minerals which includes fluorapatite, chlorapatite, hydroxylapatite, carbonate-rich apatite, and francolite, the most common of which is fluorapatite. The word apatite is derived from the Greek word for deceit, “apate” because apatite can be mistaken for many other...

World Phosphate Rock Reserves and Resources World ... - Usaid

Nearly all phosphate fertilizer production is based on phosphate rock containing some form of the mineral apatite. There are two main types of phosphate rock deposits - sedimentary and igneous. Sedimentary phosphate deposits are exploited to produce more than. 80 percent of the total world production of phosphate rock.

Stone cold - the 11 most dangerous minerals - Mining Technology

May 1, 2014 ... Hydroxyapatite or Hydroxylapatite, one of the Apatite groups of phosphate minerals and the major component of tooth enamel and bone mineral, poses a direct threat to health by creating deposits in heart valves and arteries causing blockages. Apatite is mostly used in the production of phosphorus mineral...

Mine Arnaud participe à la conférence annuelle du PDAC

Creating wealth and jobs for the Sept-Îles area and for Québec as a whole, it will provide employment to nearly 1,000 workers during the construction phase (30 months), and will lead to the creation of more than 300 direct jobs and 425 indirect jobs, which are stable, well-paying jobs related to the mining of apatite,...

Potential of eppawala apatite as a directly applied low-cost fertilizer ...

Apatite in Sri Lanka is mined from Eppawala (Eppawala Rock Phosphate or ERP). The finely ground product is used as a direct application fertilizer for tea, rubber and coconut. ERP is an indiscriminate mixture of more soluble primary crystals and a less soluble secondary phosphate matrix rich in ferruginous and aluminous...

Phosphate Rock | Mosaic Crop Nutrition

Phosphate rock comes from geologic deposits located around the world. Its main constituent is apatite, a calcium phosphate mineral primarily extracted from sedimentary marine deposits, with a small amount obtained from igneous sources. Most phosphate rock is recovered through surface mining, although some is...

Impact of phosphate mining on the hydrology and water quality of a ...

Jan 11, 2016 ... Phosphate mining (PM) activities have been strongly motivated by the increased marketing of fertilizer produced by PM. The PM activities (i.e.. ... This result was mainly related to the dissolution of apatite in the sediment, that is, the insoluble P in apatite in the form of SS became SP. The increase of TN and...

Overview | Mining Project | Arianne Phosphate Inc.

The Lac à Paul project consists of the operation of an open-pit phosphate mine in the Saguenay-Lac-Saint-Jean region, located in Quebec, Canada. Every day, 55 000 tonnes of ore will be processed in order to produce 3 million tonnes of phosphate concentrate (apatite) per year. Approximately 1000 direct and indirect jobs...

1475 - Phosphate Rock - SICCODE - Leader in SIC and NAICS Codes

What is SIC code 1475 - Phosphate RockEstablishments primarily engaged in mining, milling, drying, calcining, sintering, or otherwise preparing phosphate rock, including apatite.

PIMS NW Inc. - About Apatite II

Phosphate-Induced Metal Stabilization (PIMS) is a technology that uses a special material, Apatite II, to clean-up soil and groundwater contaminated with metals. ... This can be acid mine drainage from mining activities such as Bunker Hill (see Zinc, Lead, Cadmium and Copper Remediation of Acid Mine Drainage Using a...

Ontario, Phosphate - GeologyOntario

Phosphate in Ontario. By. D. F. Hewitt. Abstract. This mineral resources circular briefly describes 77 deposits of apatite in Ontario. The types of apatite deposits are described. There has been recent interest in apatite deposits associated with alkaline-carbonatite complexes and some large reserves of apatite are reported.

Use of phosphate rocks for sustainable agriculture

Phosphate rock (PR) is a general term that describes naturally occurring mineral assemblages containing a high concentration of phosphate minerals. ... The weathering products of igneous and sedimentary apatites (iron and aluminium phosphate minerals) are generally not useful for direct application in agriculture in their...

Apatite | Earth Sciences Museum | University of Waterloo

Apatite was named in 1788 for the Greek word apatite, which means “to deceive”, since apatite has a similar appearance to many other minerals. Apatite is not actually a specific mineral, but rather, is a name for a group of similar isomorphous hexagonal phosphate minerals. It can be very difficult to distinguish between the...

Apatite and phosphate minerals for sale: Fluorapatite, Brazilianite ...

Variety of apatite and phosphate mineral specimens including vanadinite, pyromorphite, fluorapatite, eosphorite, wavellite, mimetite. New minerals added weekly.

APATITE (Calcium (Fluoro-, Chloro-, Hydroxyl-) Phosphate)

THE MINERAL APATITE. Chemistry: Ca5(PO4)3(OH,F,Cl), Calcium (Fluoro, Chloro, Hydroxyl) Phosphate; Class: Phosphates; Group: Apatite; Uses: as a source of phosphorous to be used in fertilizer, rarely as a gemstone and as a mineral specimen. Specimens...

Rare earth elements in sedimentary phosphate deposits: Solution to ...

Our data suggest that phosphate rock currently mined in the United States has the potential to produce a significant proportion of the world's REE demand as a byproduct. Importantly .... In addition to apatite, minor constituents within samples included quartz, dolomite, potassium feldspar, illite, chlorite, smectite, and pyrite.

phosphate worksheets.fh11 - Vula

R E S O U R C E P A C K. Phosphate Mining and Processing in South Africa. Sheet. Page. Phosphate: Apatite. Apatite is a group of phosphate minerals and usually refers to hydroxylapatite, fluorapatite and chlorapatite. They are named for high concentrations of OH-, F-, or Cl- ions, respectively, in the crystal. The formula.

Phosphate Mining in the Northern Dimension - WOMP

Phosphate Mining in the Northern Dimension Sub-level caving with electric-powered LHDs and drill rigs has helped Apatite JSC stabilize operations in the Kirovsk area of Russia By Kyran Casteel, European Editor...

EuroChem reveals phosphate expansion plans at Kovdor and beyond

EuroChem reveals phosphate expansion plans at. Kovdor and beyond. By James Sean Dickson. Published: Thursday, 21 May 2015. The expansions one of the largest apatite mines in Russia are only one part of EuroChem's growth ambitions. Different ore types will be tapped and the mine could continue being worked to...

Finland's phosphorus resources are more important than ever ...

In terms of volume, the largest known phosphate deposit is located in Siilinjärvi, where Europe's only phosphate mine operates. Yara, known especially for their fertilisers, mines apatite ore and uses it to produce almost a million tonnes of apatite concentrate, which is used as the raw material for phosphoric acid and...

Phosphate biochemistry - Wikiversity

Feb 10, 2018 ... Triplite is a rare fluoro-hydroxide phosphate mineral that forms in phosphate rich granitic pegmatites and high temperature hydrothermal veins. Credit: Gemshare. Apatite-(CaF) (fluorapatite) is the doubly-terminated crystal in calcite. Credit: Didier Descouens. This fluorapatite specimen is primarily violet.

Lac à Paul Apatite Mine Project | MERN

Promoter Arianne Phosphate inc. www.arianne-inc.com picto-fleche. Project Name Lac à Paul. Administrative Region Saguenay–Lac-Saint-Jean. RCM Fjord-du-Saguenay. Interactive map (in French only) picto-fleche. Lac-a-Paul-300x238 · Steps in the mining project. Project preparation; Impact assessment and review...

Lac à Paul Apatite Mine Project | MERN

Promoter Arianne Phosphate inc. www.arianne-inc.com picto-fleche. Project Name Lac à Paul. Administrative Region Saguenay–Lac-Saint-Jean. RCM Fjord-du-Saguenay. Interactive map (in French only) picto-fleche. Lac-a-Paul-300x238 · Steps in the mining project. Project preparation; Impact assessment and review...

Phosphate mineral | Britannica.com

lithiophiliteLithiophilite with pyrolusite and quartz Lithium manganese phosphate, Midnight Owl Mine, near Wickenburg, Arizona Dave Dyet. Primary phosphates usually crystallize from aqueous fluids derived from the late stages of crystallization. Particularly common in granitic pegmatites are the primary phosphates apatite...

Apatite, calcium fluophosphate (Kola Peninsula) Encyclopedia ...

001 | Vol_X-0177. 1650. APATITE, calcium fluophosphate containing forty per cent, usually, of phosphoric anhydride, is the richest phosph [ ?] o r ic combination in nature and therefore [ ?] , a major commercial [ ?] source of phosphate fertilizer,. [ ?] Having many other industrial applications, it is a mineral found chiefly in the...

World Reserves of Phosphate Rock - Dynamic, Unfolding Story ...

Oct 12, 2013 ... Most PR is mined by open pit techniques, but a significant amount of deposits in China, Russia and other countries are extracted by underground mining. Apatite, a calcium phosphate mineral, is the principle P bearing component of PR. Figure 1. World phosphate rock resources (Source: IFDC). The origin...

The 9 Deadliest Minerals We've Ever Mined - Gizmodo

Sep 26, 2014 ... The phosphorous in your garden fertilizer and fluoride in your tap water very likely came from a rock like this, called Apatite. These phosphate minerals come in three varieties, each respectively containing elevated levels of OH, F, or Cl ions—the Hydroxyapatite version being a major component of your...

Global Phosphate Rock Reserves and Resources, the Future of ...

Feb 21, 2014 ... Phosphate Research and Resource Initiative. IFDC. U.S. Department of ... Phosphorus From. Phosphate Rock. ❖ Two major types. ○ Sedimentary – carbonate apatite, 80%-90% world production. ○ Igneous – fire-formed (fluor-chlor-hydroxyl- apatite) ... World Mine Production of Phosphate. Concentrate...

Apatite Mineral Data

General Apatite Information. Help on Chemical Formula: Chemical Formula: Ca5(PO4)3(OH,F,Cl). Help on Composition: Composition: Molecular Weight = 509.12 gm. Calcium 39.36 % Ca 55.07 % CaO. Phosphorus 18.25 % P 41.82 % P2O5. Hydrogen 0.07 % H 0.59 % H2O. Chlorine 2.32 % Cl 2.32 % Cl. - % Cl -0.52...

An Alternative Flotation Process for Apatite Concentration of the ...

An Alternative Flotation Process for Apatite. Concentration of the Itataia Carbonaceous. Uranium-Phosphate Ore. Elves Matiolo. Centro de Tecnologia Mineral (CETEM). Ligia Gonzaga. Centro de Tecnologia Mineral (CETEM). Ana Luiza Guedes. Centro de Tecnologia Mineral (CETEM). Follow this and additional works at:...

Phosphate Rock in Wyoming - Wyoming State Geological Survey

percent phosphorus pentoxide (P2O5) by weight (Filipelli,. 2011) . Phosphorus may also be concentrated in igneous rocks (McKelvey and others, 1953a) . In phosphate rock, phosphorus most commonly occurs within the mineral apatite (Ca5(PO4)3(F,Cl,OH)), a calcium phosphate with varying amounts of fluoride, chloride,...

Sedimentary and Igneous Phosphate Deposits - GeoScienceWorld

Mar 31, 2016 ... Abstract. Phosphorus is the central ingredient in fertilizer that allows modern agriculture to feed the world's population. This element, also critical in a host of industrial applications, is a nonrenewable resource that is sourced primar- ily from the phosphatic mineral apatite, hosted in sedimentary and igneous...

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