phosphorite

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Related to phosphorites: phosphate rock, hydrates

phos·pho·rite

 (fŏs′fə-rīt′)
n.
A sedimentary rock consisting predominantly of apatite and other phosphates.

phosphorite

(ˈfɒsfəˌraɪt)
n
1. (Minerals) a fibrous variety of the mineral apatite
2. (Minerals) any of various mineral deposits that consist mainly of calcium phosphate
phosphoritic adj

phos•pho•rite

(ˈfɒs fəˌraɪt)

n.
a sedimentary rock sufficiently rich in phosphate minerals to be used as a source of phosphorus for fertilizers.
[1790–1800]
phos`pho•rit′ic (-ˈrɪt ɪk) adj.
References in periodicals archive ?
"In terms of reserves and resources of the most important types of minerals, such as gold, uranium, copper, potassium salts, phosphorites and kaolin, Uzbekistan is among the world's top ten leaders.
The concave or W-shape tetrad effect phenomenon is indicative of low temperature deposits such as marine carbonates, underground waters, phosphorites, phosphatic shales, cherts, low temperature hydrothermal deposits (Kawabe, 1996; Akagi et al., 2004; Feng et al., 2011; Feng et al., 2014; Abedini et al., 2017).
The experiment used the natural phosphate Itafos of sedimentary origin, also known as Arraias phosphate, obtained from phosphorites of the Sete Lagoas Formation, basal portion of the Bambui group, region of Campos Belos, GO, and Arraias-TO (Monteiro, 2009).
The Trinidad de Guedes field, in Matanzas, offers the greatest prospects for the production of fertilizers, as it presents areas of clayey granular phosphorites with [P.sub.2][O.sub.5] contents that meet the minimum requirements for this industry (5-7).
Effect of Hydrochloric Acid on Leaching Behavior of Calcareous Phosphorites. Iran.
(2010) shows that the sampled location is near the contact of two sedimentary groups, the Vazante (shales, quartzites and phosphorites) and Paranoa (quartzites, pellites, cherts, dolomites and limestones), and also near 'lateritic--detritic' deposits, comprising an area of ~100 000 [km.sup.2].
Miocene phosphorites and its relationship with economic content of the Pisco and Sechura phosphates (Peru)
Knoll, "Eumetazoan Fossils in Terminal Proterozoic Phosphorites?," PNAS 97, no.
Stoichiometric norm of phosphoric acid for the decomposition of each of the five types of Central Kyzylkum's phosphorites is calculated out of the equation: