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Gundewar, C. S.
- Electron Microprobe and Mineralogical Study on Cobalt Bearing Sulphide from the Kalyadi Copper Mine, Hassan District, Karnataka
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Authors
Affiliations
1 Indian Bureau of Mines, G G Palaya, Bangalore-560022, IN
2 Department of Metallurgy, Indian Institute of Science, Bangalore-560012, IN
3 Australian Indian Resources, SBI Colony,7th Main, 111 Block, Bangalore-560034, IN
4 Indian Bureau of Mines, Indira Bhavan, Civil lines, Nagpur-400001, IN
1 Indian Bureau of Mines, G G Palaya, Bangalore-560022, IN
2 Department of Metallurgy, Indian Institute of Science, Bangalore-560012, IN
3 Australian Indian Resources, SBI Colony,7th Main, 111 Block, Bangalore-560034, IN
4 Indian Bureau of Mines, Indira Bhavan, Civil lines, Nagpur-400001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 71, No 2 (2008), Pagination: 257-260Abstract
Cobalt mineralisation in the Kalyadi copper-Cobalt deposit in the Hassan district, Karnataka, is mostly in sulphidic banded, feldspathic cherty quartzite. Electron microprobe study conducted on sulphide concentrates from this deposit revealed that cobalt up to 3.21 wt% is present exclusively in pyrite grains, whereas it is absent in chalcopyrite and arsenopyrite. From this, it infers that pyrite crystallized first, followed by chalcopyrite and arsenopyrite with most cobalt present in the mineralizing system replacing Fe in the paragenetically early-Formed pyrite,thereby rendering the system deficient in cobalt during later crystallization of chalcopyrite and arsenopyrite.Keywords
Pyrite, Cobalt, Electron Microprobe Study, Kalyadi, Karnataka.- Gold in Chrornite Ore of South Kaliapani Mines, Sukinda Ultramafic Belt, Jajpur District, Orissa.
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Authors
Affiliations
1 Ore Dressing Division, Indian Bureau of Mines, Ministry of Mines, L-8, MIDC-Hingna Road, Nagpur - 440 016, IN
1 Ore Dressing Division, Indian Bureau of Mines, Ministry of Mines, L-8, MIDC-Hingna Road, Nagpur - 440 016, IN