MINERALOGICAL MAGAZINE.pdfVIP

MINERALOGICAL MAGAZINE J O U R N A L OF T H E M I N E R A L O G I C A L S O C I E T Y Vol. 35 September 1966 No. 275 The Barwell meteorite By E. A. JOBB~NS and F. G. DIMES1 Institute of Geological Sciences, Geological Survey and Museum, London, S.W. 7 and R. A. B~NNs,~ M. H. HEY, and S. J. B. REED Department of Mineralogy, British Museum (Natural History), London, S.W. 7 Summary. Part of a meteorite was seen to fall on a road (52~ 33 55 N., 1~20 23 W.) in the village of Barwell, Leicestershire, at about 16.20hrs G.M.T. on 24 Decem- ber 1965.Fragments have been found over an area some ~ mile long by 89mile across, and appear to have been part of a single stone, of which 44 Kg (97 lb) have been recovered. The distribution, impact effects, and crustal morphology of the re- covered fragments are described. Barwell is a moderately metamorphosed white olivine-hypersthene chondrite; a chemical analysis, with the derived Wahl norm, and a modal analysis are given, together with optical data and electron-probe analyses of the principal constituent minerals. ~ approximately 16-20 hrs G.M.T. on Christmas Eve, 24 December 1965, Mr. A. E. Crow of 18 The Common (a road leading to the centre of Barwell, Leicestershire) was walking home from work when he saw a flash in the sky and heard a bang. A few moments later he heard something swish down out of the sky and land somewhere in the vicinity with a thud. He then heard four or five other objects come down in quick succ