SOLGT

Her en veldig fin ny karbonmeteoritt CV3 som er registrert av geotop. 5,4 gram og 36x30x2 mm. Den er veldig intakt med superflotte kondruler og har mange kalsium/aluminium innelsutninger (CAI). Total kjent vekt er kun 79 gram!

Karbonmeteoritter 

NWA 11348

Field name: MB-8 (Northwest Africa) Place of purchase: Morocco Purchase Date: 2017 Mass: 79 g Type specimen mass: 16 g Pieces: 1 Class: CV3 Shock: low Weathering grade: low Fa: 22.4±26.7 Fs: 1.5±0.9 Wo: 3.6±4.8 Classifier: C. Agee, UNM Type spec loc: UNM History: Purchased by Morten Bilet from a meteorite dealer in Quarzazate, Morocco March 2017, reported found during winter of 2016-2017. Physical: Singe stone, irregular, black exterior with chondrule pits. A saw cut reveals numerous chondrules, some up to 2 mm, many CAIs observed throughout, matrix is dark gray. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows porphyritic chondrules, many of which are irregular in shape. Fine grained matrix makes up ~40% of this meteorite. Opaques include troilite, Fe-Ni sulfide, and oxidized iron. Aluminous diopside was detected. Geochem: (C. Agee and B. Ha, UNM) Olivine Fa22.4±26.7, Fe/Mn=116±79, Cr2O3=0.11±0.06, n=7; low-Ca pyroxene Fs1.5±6.2Wo3.6±4.8, Fe/Mn=23±18, n=3. Classification: Carbonaceous chondrite (CV3) Specimens: 16 g including a probe mount on deposit at UNM, Morten Bilet holds the main mass. Submitter: C. Agee