What is "ureilite"

n. An achondrite composed mostly of olivine and clinobronzite with some diamond or graphite

Ureilite is a rare type of stony meteorite that has a unique mineralogical composition very different from that of other stony meteorites. This dark grey or brownish meteorite type is named after the village Novy Urey ( Cyrillic: Новый Урей), Mordovia Republic of Russia, where a meteorite of this type fell on 4 September 1886. Notable ureilites are the Novo Urei and the Goalpara, also named for the town in which it landed ( Goalpara, Assam India). On 7 October 2008, tiny asteroid 2008 TC entered Earth's atmosphere and exploded an estimated above the Nubian Desert in Sudan. Fragments of this asteroid were recovered the following December and were found to be ureilite. Scientists have discovered amino acids, the building blocks of life in this meteorite 2008 TC where none were expected taking into account the high temperatures reached in the explosion about 1000 °C.