08980 - Top Rare 0.924 g NWA Unclassified Ureilite Achondrite Meteorite Polished Section Ectillaenus Schlüter 1871 (ammonite)

Schlüter 1871 (ammonite)

A new species of Halisaurus from the Late Cretaceous phosphates of Morocco

- Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3)

as well as a few small pieces (3-10 g)

08980 - Top Rare 0.924 g NWA Unclassified Ureilite Achondrite Meteorite Polished Section Ectillaenus Schlüter 1871 (ammonite)Beautiful polished section of this rare NWA Ureilite achondrite meteorite. 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, 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