Phosphate minerals are those
minerals that contain the tetrahedrally coordinated phosphate(PO43-) anionalong with the freely substituting arsenate(AsO43-) and vanadate(VO43-). Chlorine(Cl-), fluorine(F-), and hydroxide(OH-) anions also fit into the crystal structure.
The phosphate class of minerals is a large and diverse group, however, only a few species are relatively common.
Phosphate rockis a general term that refers to rock with high concentration of phosphate minerals, most commonly of the apatite group. It is the major resource mined to produce phosphate fertilisers for the agriculture sector. Phosphate is also used in animal feed supplements, food preservatives, anti-corrosion agents, cosmetics, fungicides, ceramics, water treatment and metallurgy.
The largest use of minerals mined for their
phosphatecontent is the production of fertilizer.
Phosphate minerals are often used for control of rust and prevention of corrosion on ferrous materials applied with electrochemical conversion coatings.
* Hurlbut, Cornelius S.; Klein, Cornelis, 1985, "Manual of Mineralogy", 20th ed., John Wiley and Sons, New York ISBN 0-471-80580-7
* [http://webmineral.com/strunz/VII.shtml#VII/A Webmineral - Strunz]
* [http://webmineral.com/dana/VII-38.shtml Webmineral - Dana]
* [http://www.australianminesatlas.gov.au/info/aimr/phosphate.jsp - Australian Mineral Atlas]
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Phosphate minerals — ▪ Table Phosphate minerals name colour lustre Mohs hardness specific gravity amblygonite white to creamy white; slightly tinted vitreous to greasy 5½–6 3.0–3.1 apatite carbonate apatite variable, greens predominating vitreous 5 2.9–3.2… … Universalium
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