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Research Paper | Chemistry | Volume 15 Issue 4, April 2026 | Pages: 1471 - 1479 | India
Geochemical, Mineralogical and Thermal Characterization of Paleoproterozoic Phosphorites from the Hirapur-Mardeora Belt, Central India: Implications for Agronomic Safety and Utilization
Abstract: Phosphate rock is a vital raw material for the manufacture of fertilizers, agrochemicals, animal feed supplements, water purification agents, and various chemical industries. In the present study, the thermal and geochemical characteristics of Hirapur phosphate rock samples were systematically investigated to evaluate their mineralogical composition and resource potential. Powder X-ray diffraction (XRD) analysis confirmed apatite as the principal ore mineral, predominantly in the form of fluorapatite. Fourier transform infrared (FTIR) spectroscopy further substantiated the presence of characteristic functional groups associated with hydroxyapatite. Thermogravimetric analysis (TGA) demonstrated favorable thermal stability and provided insights into the geological origin of the deposit. Chemical composition and elemental concentrations were determined using X-ray fluorescence (XRF), enabling precise quantification of both ore and associated gangue minerals. The P2O5 content was found to be 21.70%, indicating moderate-grade phosphate. Quartz constitutes approximately 30.7% of the sample, while hematite content (0.861 wt.%) remains within acceptable limits for fertilizer-grade phosphate. Although silica and iron contents are relatively higher, these characteristics may contribute to gradual phosphorus release under suitable soil conditions, supporting sustained nutrient availability for crops.
Keywords: Geochemistry, Phosphate rock, fluorapatite, XRD, FTIR, XRF, TGA, beneficiation, P2O5, hematite, quartz
How to Cite?: Rahul Kumar Jain, Sukhchand Adey, Shailendra Rajpoot, Dr. Diwa Mishra, "Geochemical, Mineralogical and Thermal Characterization of Paleoproterozoic Phosphorites from the Hirapur-Mardeora Belt, Central India: Implications for Agronomic Safety and Utilization", Volume 15 Issue 4, April 2026, International Journal of Science and Research (IJSR), Pages: 1471-1479, https://www.ijsr.net/getabstract.php?paperid=SR26421154702, DOI: https://dx.dx.doi.org/10.21275/SR26421154702