Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Phurcalite: A Rare Secondary Calcium Uranium Phosphate Mineral from Putholi, Chittaurgarh District, Rajasthan


Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, Begumpet, Hyderabad- 500016, India
2 J. L. N. Road, Jaipur-302004, India
     

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X-ray powder diffraction data are presented for phurcalite [Ca2(UO2)3 (PO4)2 (OH4 4H2O], with orthorhombic symmetry, a very rare, yellow coloured, secondary uranium mineral, from Putholi (24°57'45":74"38'30"). The host rock is quartzite which contains fluorapatite, pyrite, goethite, hematite, magnetite, chlorite and mica as accessory minerals. Measured cell parameters of the phurcalite are: a0 = 17.3416 Å,  b0 = 16.1138 Å and c0 = 13.5491 Å, with a cell volume of 3786.16 Å3.

Keywords

Mineralogy, Phurcalite, Rajasthan.
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  • Phurcalite: A Rare Secondary Calcium Uranium Phosphate Mineral from Putholi, Chittaurgarh District, Rajasthan

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Authors

Yamuna Singh
Atomic Minerals Division, Department of Atomic Energy, Begumpet, Hyderabad- 500016, India
K. D. P. Singh
Atomic Minerals Division, Department of Atomic Energy, Begumpet, Hyderabad- 500016, India
A. K. Bhatt
J. L. N. Road, Jaipur-302004, India

Abstract


X-ray powder diffraction data are presented for phurcalite [Ca2(UO2)3 (PO4)2 (OH4 4H2O], with orthorhombic symmetry, a very rare, yellow coloured, secondary uranium mineral, from Putholi (24°57'45":74"38'30"). The host rock is quartzite which contains fluorapatite, pyrite, goethite, hematite, magnetite, chlorite and mica as accessory minerals. Measured cell parameters of the phurcalite are: a0 = 17.3416 Å,  b0 = 16.1138 Å and c0 = 13.5491 Å, with a cell volume of 3786.16 Å3.

Keywords


Mineralogy, Phurcalite, Rajasthan.