Mangum H4 Chondrite Meteorites for Sale
Location: Greer County, Oklahoma, USA (34.849°N, 99.704°W)
Classifcation: Ordinary chondrite (H4)
Description: History: Found by Mr. Ray Chambless in 2008 while he was mowing his yard, but only recognized as a possible meteorite in 2011 September, after he viewed a television show on meteorites. The find location was about 11.5 miles ESE of Mangum in Greer County, Oklahoma. Physical characteristics: A single, large brownish stone weighing 750 g and partially covered with weathered fusion crust. Petrography: (A. Irving and S. Kuehner, UWS) The specimen consists of small, well-formed chondrules in a finer grained matrix rich in stained metal. Primary minerals are olivine, low- and high-Ca pyroxene, sodic plagioclase, chromite, troilite and kamacite (partially altered to iron hydroxides). Geochemistry: Olivine Fa18.2, orthopyroxene Fs16.0-16.1Wo0.9-1.0, clinopyroxene Fs5.8-5.9Wo47.5-43.0.