• phosphate mineral | Description, Uses, & Facts | Britannica

    www.britannica.com/science/phosphate-mineral Phosphate mineral, any of a group of naturally occurring inorganic salts of phosphoric acid. Phosphates can be grouped as: primary phosphates that have crystallized from a liquid; secondary phosphates formed by the alteration of primary phosphates; and rock phosphates formed from phosphorous-bearing organic material.
  • Phosphate mineral - Wikipedia

    en.wikipedia.org/wiki/Phosphate_minerals Phosphate minerals contain the tetrahedrally coordinated phosphate (PO 4 3−) anion along sometimes with arsenate (AsO 4 3−) and vanadate (VO 4 3−) substitutions. Chlorine (Cl −), fluorine (F −), and hydroxide (OH −) anions that 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.
  • Category:Phosphate minerals - Wikipedia

    en.wikipedia.org/wiki/Category:Phosphate_minerals Phosphate minerals contain the phosphate, PO 4 3−, anion.. In standard mineral classification systems (in both the Dana and Strunz systems) the phosphate class includes the arsenates, vanadates and the polyvanadates. Strunz includes the vanadates(V, VI) in the oxides class.. Subcategories. This category has only the following subcategory.
  • Phosphate Mineral - an overview | ScienceDirect Topics

    www.sciencedirect.com/topics/earth-and-planetary-sciences/phosphate-mineral In most cases apatite is the common phosphate mineral, which with advancing diagenesis and decreasing pH is replaced first by Ca-Al phosphates and then by Al phosphates. In decalcified clay-rich sediments and soils, Al phosphates are formed directly.
  • Phosphate Minerals - University of Wisconsin–Madison

    soils.wisc.edu/facstaff/barak/temp/soil8510/notes/phosphates.html Phosphate Minerals. Ch. 22, p. 1089-1130. In: J.B. Dixon and S.B. Weed (ed.), Minerals in Soil Environments, 2nd Edition. Phosphates. By one count, 172 naturally-occurring phosphate minerals have been identified. A number of phosphate mineral classification schemes exist but we will follow that chosen by Lindsay et al . (1989), which is ...
  • Which Minerals Include Phosphate? - ThoughtCo

    www.thoughtco.com/what-are-phosphate-minerals-4123032 Apatite is a family of minerals centered around fluorapatite, or calcium phosphate with a bit of fluorine, with the formula Ca 5 (PO 4) 3 F. Other members of the apatite group have chlorine or hydroxyl that take the place of the fluorine; silicon, arsenic or vanadium replace the phosphorus (and carbonate replace the phosphate group); and strontium, lead, and other elements substitute for the ...
  • Phosphate Mineral Group - Mineral Processing & Metallurgy

    www.911metallurgist.com/blog/phosphate-minerals-group The Phosphate Mineral Group includes a number of the rarer minerals and apatite. Pitchblende or Uraninite is of Color, pitchy black, greenish, or brownish black; powder, brownish black, grayish, greenish; luster, dull and pitchy, sometimes slightly metallic. H = 5.5; G = 9 to 9.7; no cleavage; contains uranium, radium, etc. Found in pegmatite granite dikes, and also, in some cases, with ores ...
  • Phosphate Rock Statistics and Information - USGS.gov

    www.usgs.gov/centers/nmic/phosphate-rock-statistics-and-information Phosphorus is an essential element for plant and animal nutrition. Most phosphorus is consumed as a principal component of nitrogen-phosphorus-potassium fertilizers used on food crops throughout the world. 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
  • Phosphate Mineral - an overview | ScienceDirect Topics

    www.sciencedirect.com/topics/.../phosphate-mineral An experimental study of zinc phosphate dissolution by the ectomycorrhizal association of Paxillus involutus with Scots pine (Pinus sylvestris) demonstrated that phosphate mineral dissolution, phosphorus acquisition, and zinc accumulation by the plant depended on the mycorrhizal status of the pines, the zinc tolerance of the fungal strain, and ...
  • Mineral Gallery - the Phosphates Class

    www.galleries.com/Phosphates The Phosphate Class is made up of minerals with a basic chemical unit of tetrahedral (AO4) groups with a negative three (-3) charge.The A can be either Phosphorus, Arsenic, Vanadium or Antimony. The basic chemical unit can be combined with metal ions on a one to one ratio or usually in more complex combinations with other ions such as hydroxide groups (OH), uranyl groups (UO2), a halogen or ...