This is a gorgeous meteorite. I cut a few grams off for ASU and I have 4 slices and partslices totaling about 50 grams, and that’s it. The mass stays intact Michael Farmer
> On Jun 8, 2018, at 12:45 PM, Galactic Stone & Ironworks via Meteorite-list > <[email protected]> wrote: > > The San Pedro de Urabá meteorite fall from February 2017 has been > approved and published in the Met Bulletin : > > San Pedro de Urabá > 8°16’44.39"N, 76°22’41.67"W > Antioquia, Colombia > Confirmed fall: 16 Feb 2017 > Classification: Ordinary chondrite (L6) > > History: At 5:30 pm local time on 16 February 2017, a large fireball > with sonic booms was observed in northern Colombia. A meteorite > subsequently impacted near Mr. Orlando Cuevas on the edge of a soccer > field in San Pedro de Urabá, Turbo district, Antioquia State, > Colombia. The event was widely reported in the local media. Two other > stones are known to have fallen, one much larger than the one that was > collected in the soccer field, but their whereabouts are unknown. > Michael Farmer acquired the 3768 g stone from Mr. Cuevas. > > Physical characteristics: Single regmaglypted stone covered with matte > black fusion crust. Interior is a light greenish-gray and friable. Cut > surface shows poorly defined chondrules and even distribution of small > metal/troilite grains. Only a single thin shock vein is visible. > > Petrography: SEM observation of a polished mount shows scattered > poorly defined chondrules (BO, RP, and PO) largely integrated with the > matrix. All silicates heavily fractured. Feldspar grains typically >50 > μm, with many around 100 to 200 μm. Troilite anhedral and dominantly > single crystal to 400 μm. Rare anhedral Ca-Na-Mg phosphates to 60 μm. > Chromite to 600 μm is anhedral to subhedral and heavily fractured. > Three Fe-Ni metal types present: kamacite, dominantly single crystal > (to 0.5 mm) with a frosty etch and weakly defined Neumann bands; > tetrataenite, rare, commonly contiguous to kamacite; and, equant > Ni-zoned grains with Ni-rich rims and dark-etched cores, some showing > kamacite spindles. Native Cu is rare and occurs as <10 micron grains > at kamacite/troilite boundary. Scattered and rare melt pockets to 60 > μm. > > Geochemistry: Olivine Fa25.1±0.3, FeO/MnO=47.6±1.8, n=9; low Ca > pyroxene Fs21.4±1.2Wo1.5±0.2, FeO/MnO=28.4±1.3, n=10; Feldspars > Or13.4±0.3Ab67.3±67.3±0.5, n=3 and Or5.4±0.1Ab84.4±0.02, n=2. > > Classification: Ordinary chondrite L6, S3, W0 > > Specimens: 32 g at ASU. Main mass with MFarmer. > > Link - https://www.lpi.usra.edu/meteor/metbull.php?code=67598 > > 21st Century Witnessed Falls - http://galactic-stone.com/pages/falls > > > -- > --------------------------------------------------------------------------- > Galactic Stone & Ironworks : www.galactic-stone.com > --------------------------------------------------------------------------- > ______________________________________________ > > Visit our Facebook page https://www.facebook.com/meteoritecentral and the > Archives at http://www.meteorite-list-archives.com > Meteorite-list mailing list > [email protected] > https://pairlist3.pair.net/mailman/listinfo/meteorite-list ______________________________________________ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] https://pairlist3.pair.net/mailman/listinfo/meteorite-list
