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 […]
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Camel Donga
Camel Donga is an achondrite found on the Nullarbor Plain of Western Australia in 1984. The word “donga” is a term for “campsite” in Australia. Camel Donga is a eucrite (monomict breccia), part of the HED group of meteorites (Howardites-Eucrites-Diogenites). These meteorites are believed to originate from the cooling of magma on the surface of […]
Parnallee
Parnallee is an ordinary (LL3.6) chondrite that fell February 28th, 1857, in Tamil Nadu, India. Parnallee is a low-iron, low metal (LL) chondrite exhibiting abundant chondrules, un-equilibrated mineral assemblages, and a low degree of aqueous alteration. Over 77 kilograms of the Parnallee meteorite have been recovered to date. The overwhelming majority of meteorites recovered in […]
Rancho Gomelia
Rancho Gomelia is an iron (IIIAB) meteorite found near Durango, Mexico, in 1975. Two pieces, weighing a total of 15.65 kilograms, were recovered. This specimen of Rancho Gomelia measures approximately 8" in length, and displays an excellent Widmanstatten pattern (named for Count Alois von Beckh Widmanstatten, director of the Austrian Imperial Porcelain Works, in 1808), […]
Losttown
Losttown is an iron meteorite (IID) found in Georgia, in 1868. This specimen exhibits excellent Widmanstätten pattern (named for Count Alois von Beckh Widmanstätten, director of the Austrian Imperial Porcelain Works, in 1808), created by the interlocking crystal structure of two nickel-iron alloys. Most iron meteorites are believed to originate in the cores of large […]
