Penokee meteorite, Graham Co., Kansas, USA
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Latitude & Longitude (WGS84): | 39° 21' North , 99° 55' West |
---|---|
Latitude & Longitude (decimal): | 39.35000,-99.91667 |
Non-native locality type: | Meteorite |
Meteorite Class: | H5 chondrite meteorite |
Meteoritical Society Class: | H5 |
Metbull: | View entry in Meteoritical Bulletin Database |
Köppen climate type: | Cfa : Humid subtropical climate |
Ordinary chondrite (H5)
Find, 1947; 3.58 kg
A single meteoritic stone was recovered. Chondrules, clasts, and flecks of Fe-Ni metal are seen within a generally equilibrated matrix interrupted by obvious weathering. Compositionally, equilibrated olivine (Fa19) and low Ca-orthopyroxene are characteristic of the H-chondrite geochemical group. Mineralogically the meteorite consists primarily of olivine and pyroxene accompanied by minor troilite, and Fe-Ni metal. Accessory copper and ilmenite are also reported. Penokee is unusual in that it is one of the very few ordinary chondrites in which chromite was not observed by Ramdohr (1973).
The main mass is at the U.S. National Museum in Washington, DC (3.352 kg in 2017).
Mineral List
5 valid minerals.
Meteorite/Rock Types Recorded
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References
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Mason, B. (1963) Olivine in ordinary chondrites. Geochimica et Cosmochimica Acta 27(9): 1011-1023. (Sept 1963).
Ramdohr, P. (1973). The Opaque Minerals in Stony Meteorites. Elsevier Publishing Company: Amsterdam; London: New York. 245 pages.
Graham, A.L., Bevan, A.W.R. & Hutchison, B. (1985) Catalogue of Meteorites (4/e). University of Arizona Press: Tucson.
Grady, M.M. (2000). Catalogue of Meteorites (5/e). Cambridge University Press: Cambridge; New York; Oakleigh; Madrid; Cape Town. 689 pages.
External Links
http://www.lpi.usra.edu/meteor/metbull.php - MeteoriticalBulletinDatabase
http://www.lpi.usra.edu/meteor/metbull.php?code=18788 - Penokee@MetBullDatabase
http://www.encyclopedia-of-meteorites.com/test/Penokee_don_edwards.jpg - Penokee specimen
http://www.lpi.usra.edu/meteor/metbull.php?code=18788 - Penokee@MetBullDatabase
http://www.encyclopedia-of-meteorites.com/test/Penokee_don_edwards.jpg - Penokee specimen