Norton County fell February 18th of 1948, on the Kansas/Nebraska border. Norton County is a rare type of meteorite called an aubrite, which is an enstatite achondrite. Aubrites are dominated by enstatite – a pyroxene mineral containing Mg, Si, and O. This mineral is white in Norton County, as opposed to the more normal green…

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…