Hi Bulletin Watchers, There is one new approval, a ureilite found in Colorado in 2006.
Link : http://www.lpi.usra.edu/meteor/metbull.php?code=61353 Write-up text : Sawtooth Mountain 38°20’46"N, 106°57’41”W Colorado, United States Found: 2006 Classification: Ureilite History: This meteorite was found by Eldon Surbeck in the summer of 2006. He was hunting for fossils on a shale exposure/talus slope when he noticed a stone that looked out of place sitting on the outcrop. He picked it up and took it home thinking that it might be a meteorite. Physical characteristics: Single stone, oriented. Dark weathered fusion crust covered exterior with rind ~3 mm thick. A saw cut reveals dark polycrystalline texture with many thin, macroscopic, graphite grains, some up to 4 mm long. Petrography: (C. Agee, UNM) Examination of a polished mount shows polygonal olivine and pigeonite grains (300-1000 μm) with triple junctions. Most olivines have fine Fe-metal blebs on grain boundaries and along fractures. Ubiquitous graphite, often as elongate mm-size domains. Fe-metal and oxidized metal occupying most silicate grain boundaries. Chromite is present. Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa24.9±3.0, Fe/Mn=55±9, Cr2O3=0.46±0.01, n=15; pigeonite Fs20.8±0.1Wo11.8±0.1, Fe/Mn=33±2, Cr2O3=1.07±0.01 wt%, n=10. Classification: Achondrite (ureilite) Specimens: 21.8 g including a probe mount on deposit at UNM, Reed holds the main mass. ------------------ -- ------------------------------------------------------------- Web - http://www.galactic-stone.com Facebook - http://www.facebook.com/galacticstone Twitter - http://twitter.com/galacticstone Pinterest - http://pinterest.com/galacticstone ------------------------------------------------------------- ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list