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Bishopville meteorite, Bishopville, Lee Co., South Carolina, USA

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Latitude & Longitude (WGS84): 34° 13' 5'' North , 80° 14' 54'' West
Latitude & Longitude (decimal): 34.2180555556, -80.2486111111
Non-native locality type:Meteorite


Aubrite, [achondrite], monomict breccia (Aub,br; S2-S5)
Fall, 23 March 1843; 5.9 kg, one stone.

After detonations, a single meteoritic stone was recovered. The Bishopville fall was only the second of 9 witnessed aubrite falls. As with all aubrites, enstatite (orthoenstatite) is Bishopville's dominant constituent (75 vol%). Plagioclase (16 vol%) is also prominent and, indeed, much more abundant than in other aubrites. In addition to the extremely Fe-poor silicates (enstatite and forsterite) and Fe-Ni metal, a number of rare sulfides and nitrides are present (djerfisherite, oldhamite, osbornite). Bishopville is a breccia with various components exhibiting various stages of shock. Shock levels in orthoenstatite and plagioclase reach the S4 level and, for troilite, S5. In the more readily reequilibrated olivine (forsterite) shock levels (S2) are much lower. in the more readily reequilibrated olivine (forsterite).

Aubrites are distinguished from other achondritic (differentiated) meteorite groups by an extremely reduced mineralogy and their Earth-like oxygen isotope ratios. A Keil (2010) review and Ruben (2015) update provide a quick entrée into contemporary aubrite research.

Mineral List


13 valid minerals.

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References

Watters, T.R. and Prinz, M. (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Vol. 1. ) New York, Pergamon Press, Inc., 1979, p. 1073-1093.

Mittlefehldt, D.W., McCoy, T.J., Goodrich, C.A., and Kracher, A. (1998) Non-chondritic meteorites from Asteroidal bodies. In: Planetary Materials (Papike, J. J., Editor): Chapter 4, 195 pages. Mineralogical Society of America: Washington, DC, USA.

Grady, M.M. (2000) Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge, New York, Oakleigh, Madrid, Cape Town. 690 pages.

Keil, K. (2010) Enstatite achondrite meteorites (aubrites) and the histories of their asteroidal parent bodies: Chemie der Erde : Beiträge zur chemischen Mineralogie, Petrographie und Geologie. 70 (4): 295-317.

Rubin, A.E. (2015) Shock and annealing in aubrites: Implications for parent-body history. Meteoritics & Planetary Science 50(7): 1217-1227. (July 2014).

External Links

http://www.lpi.usra.edu/meteor/metbull.php - Meteoritical Bulletin Database
http://www.lpi.usra.edu/meteor/metbull.php?code=5059 -Bishopville@MetBullDatabase

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