08989 - Top Rare 0.079 g NWA Unclassified Ureilite Achondrite Meteorite Polished Section Unidentified Trilobites Tissint Mars Rock has a

Tissint Mars Rock has a very fresh shiny black fusion crust with a greyish interior color containing sporatic areas of black glass and pale yellow olivine macrocrysts

Comments: Approved 21 Sep 2019 Writeup Writeup from MB 108:

Chondrules of plagioclase and pyroxene crystals are also observed

mainly belonging to the mandibular symphysis

08989 - Top Rare 0.079 g NWA Unclassified Ureilite Achondrite Meteorite Polished Section Unidentified Trilobites Tissint Mars Rock has aBeautiful 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