Raghunathpura meteorite, Alwar district, Rajasthan (Rajputana), India
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Fall, 20 Nov 1986; 10.2 kg
During the evening a fireball was seen while 3 detonations followed by an approaching din were heard. The next morning a single mass of Fe-Ni metal (5.3% Ni) was recovered from a meter deep inclined pit. The meteorite consists predominantly of kamacite. Etchings reveal Neumann bands indicative of preterrestrial or impact shock. A few troilite inclusions were noted and, in the interior, tiny rhabditic needles (schreibersite) are common. A thin black fusion crust marked by cavities, furrows, and regmaglypts consists primarily of magnetite with lesser wüstite. An argon-38 exposure age of ~275 Ma has been determined.
IIAB irons are the 3rd most abundant type of iron meteorites and represent ~ 12% of all classified irons. By the end of 2014 a total of 123 recoveries of IIAB meteorites had been made, but Raghunathpura is the most recent of only 6 witnessed falls.
Mineral List
5 entries listed. 4 valid minerals.
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References
Frank Wlotzka, F. [Ed.] (1990). Meteoritical Bulletin: Meteoritics 25 (3): 237-239. (Sept 1990).
Bapna, V. S., Sharma, P. N., Sathe, M. D., Mathur, K. N. & Dwivedi, G. L. (1991) The Raghunathpura iron meteorite from Alwar, India: Meteoritics 26 (1): 65-67. (March 1991)
Murty, S. V. S., Ghosh, S. & Ray, D. (2014) Cosmic Ray Exposure Age of Raghunathpura (IIAB) Iron Meteorite: 77th Annual Meeting of the Meteoritical Society. LPI Contribution No. 1800, pdf-id.5135. (Sept 2014)
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
Bapna, V. S., Sharma, P. N., Sathe, M. D., Mathur, K. N. & Dwivedi, G. L. (1991) The Raghunathpura iron meteorite from Alwar, India: Meteoritics 26 (1): 65-67. (March 1991)
Murty, S. V. S., Ghosh, S. & Ray, D. (2014) Cosmic Ray Exposure Age of Raghunathpura (IIAB) Iron Meteorite: 77th Annual Meeting of the Meteoritical Society. LPI Contribution No. 1800, pdf-id.5135. (Sept 2014)
Grady, M. M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.
External Links
http://www.lpi.usra.edu/meteor/metbull.php = Meteoritical Bulletin Database
http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1990Metic..25..237W
http://articles.adsabs.harvard.edu/full/1991Metic..26...65B
http://adsbit.harvard.edu/cgi-bin/nph-iarticle_query?1990Metic..25..237W
http://articles.adsabs.harvard.edu/full/1991Metic..26...65B
