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A sedimentary rock consisting predominantly of apatite and other phosphates.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Minerals) a fibrous variety of the mineral apatite
2. (Minerals) any of various mineral deposits that consist mainly of calcium phosphate
phosphoritic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈfɒs fəˌraɪt)

a sedimentary rock sufficiently rich in phosphate minerals to be used as a source of phosphorus for fertilizers.
phos`pho•rit′ic (-ˈrɪt ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Every year, Malaysia imports rock phosphate, or phosphorite, to be used as feedstock for fertilisers.
Zhambyl region is rich in natural deposits of phosphorite, fluorspar, uranium, precious and non-ferrous metals, coal and natural gas, salt and barite.
The first form has a concave or W-shaped curve which is mostly observed in the low-temperature geological environments such as waters, limestone, marine sediments, and phosphorite (Masuda and Ikeuchi, 1978; Mazumdar et al., 2003; Yamamoto et al., 2004; Peretyazhko and Savina, 2010; Feng et al., 2014; Abedini et al., 2017).
Assessment of metallothioneins in tissues of the clam Megapitaria squalida as biomarkers for environmental cadmium pollution from areas enriched in phosphorite. Arch.
Meanwhile, the index for 'Minerals' group declined by 2 percent to 119.7 from 122.2 for the previous month due to lower price of copper concentrate and phosphorite.
It has considerable uranium stocks, some in phosphorite sediments.
Aksoy A, Ahmed M, Matter WSA (2002) Gamma-ray spectroscopic and PIXE analysis of selected samples from the phosphorite deposits of Northwestern Saudi Arabia.
It is most likely that the mineral Funk received was indeed phosphorite, and the apothecary in Tallinn had misled him by accident.
Fei, "Separation and Enrichment of Rare Earth Elements in Phosphorite in Xinhua, Zhijin, Guizhou," Journal of Rare Earths, vol.
Li, "Optimization of stope structural parameters in phosphorite mine and its stability analysis," Applied Mechanics and Materials, vol.
Wang, "Determination of major/minor and trace elements in seamount phosphorite by XRF spectrometry," Geostandards and Geoanalytical Research, vol.