Nr. 102271065

NEA 023 LL7 meteorit condrită poikiloblastică - 4 g
Nr. 102271065

NEA 023 LL7 meteorit condrită poikiloblastică - 4 g
NEA 023
LL7 Poikiloblastic Chondrite Meteorite.
Found in April 2020 in Libya.
This is officially classified and approved as NEA 023 LL7 Poikiloblastic meteorite.
Classified and studied by Dr Anthony J. Irving and team at Department of Earth and Space sciences,
University of Washington.
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OFFICIAL CLASSIFICATION DATA SOURCE METEORITICAL BULLETIN DATABASE,
Petrography: (A. Irving, UWS and P. Carpenter, WUSL) This fresh specimen has a poikiloblastic texture with abundant very small olivine chadacrysts enclosed by larger low-Ca pyroxene oikocrysts. No recognizable chondrules are present. Accessory phase include sodic plagioclase, augite, taenite, kamacite, troilite and merrillite. Some thin dark shock veinlets are present.
Geochemistry: Olivine (Fa29.9±0.3, range Fa29.6-30.3, N = 5), low-Ca pyroxene (Fs24.2±0.1Wo3.9±0.2, range Fs24.1-24.3Wo3.7-4.2, N = 5), augite (Fs12.1Wo40.2).
Classification: Ordinary chondrite (LL7, poikiloblastic).
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