Crescent is a CM2 carbonaceous chondrite that fell in Oklahoma, the evening of August 17th, 1936. The associated fireball was visible in Texas and Kansas, as well as Oklahoma, and the meteorite’s recovery was immediately organized. While the first stone, a 73-gram chondrite in fresh condition, was collected three days after the fall (by a […]
Tag: carbonaceous
Coolidge
Coolidge is a carbonaceous (C4-ungrouped) chondrite found in Kansas in 1937. According to Meteoritical Society classification, type-4 carbonaceous chondrites mostly have Mg/Si ratios near solar value, oxygen isotope compositions that plot below the terrestrial fractionation line, and abundant metamorphosed chondrules. At the Buseck Center for Meteorite Studies, collection curator and research professor Laurence Garvie deciphers […]
