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

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Native Antimony Float-Ore from the Precambrian of Rajasthan


Affiliations
1 Department of Geology, M.L. Sukhadia University, Udaipur - 313 001, India
2 ISTO-CNRS , IA rue de la Ferollerie, F-45071, Orleans Cedex 2, France
3 Departrnent of Physics, M.L. Sukhadia University, Udaipur - 313 001, India
 

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Placer concentrations of rolled chunks of heavy, Silvery-White, metallic mineral occur along a rivulet (N25°40.013'; E75°20.851') 15 km east of Jahazpur town of eastern Rajasthan. The float-ore occurs in the Precambrian phyllite that is profusely traversed by vein quartz, its physical, optical, XRD, EPMA data show that the mineral is native antimony (averaging 97.12%Sb) having -2% As; minor grains of PbTe are also recognized. Prospecting by the Department of Mines and Geology, Rajasthan has not yet resulted in the discovery of the mother lode. This report describes the mineralogy of the Float-Ore that has scientific value and is a new occurrence in India.
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  • Native Antimony Float-Ore from the Precambrian of Rajasthan

Abstract Views: 182  |  PDF Views: 141

Authors

P. S. Ranawat
Department of Geology, M.L. Sukhadia University, Udaipur - 313 001, India
0. Rouer
ISTO-CNRS , IA rue de la Ferollerie, F-45071, Orleans Cedex 2, France
C. Ramboz
ISTO-CNRS , IA rue de la Ferollerie, F-45071, Orleans Cedex 2, France
N. Lakshmi
Departrnent of Physics, M.L. Sukhadia University, Udaipur - 313 001, India

Abstract


Placer concentrations of rolled chunks of heavy, Silvery-White, metallic mineral occur along a rivulet (N25°40.013'; E75°20.851') 15 km east of Jahazpur town of eastern Rajasthan. The float-ore occurs in the Precambrian phyllite that is profusely traversed by vein quartz, its physical, optical, XRD, EPMA data show that the mineral is native antimony (averaging 97.12%Sb) having -2% As; minor grains of PbTe are also recognized. Prospecting by the Department of Mines and Geology, Rajasthan has not yet resulted in the discovery of the mother lode. This report describes the mineralogy of the Float-Ore that has scientific value and is a new occurrence in India.