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Northwest Africa 8523 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8523 This is an OFFICIAL meteorite name. Abbreviation: NWA 8523 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 569 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 14 Sep 2014 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 103:
Northwest Africa 8523 (NWA 8523) (Northwest Africa) Purchased: 2014 Classification: HED achondrite (Eucrite) Petrography: The meteorite displays a basaltic texture of dominantly calcic plagioclase and exsolved pyroxene. Plagioclase is typically lath-shaped. Accessories include SiO2 polymorphs, chromite, and troilite. The rock is heavily brecciated and contains abundant shock melt veins. Geochemistry: low-Ca pyroxene: Fs54.6±0.3Wo2.1±0.3 (Fs54.1-55.4Wo1.7-2.7, n=22), FeO/MnO=31-35; Ca-pyroxene: Fs22.3±1Wo45.7±1 (Fs20.9-23.8Wo43.7-47.3, n=15), FeO/MnO=26-35; calcic plagioclase: An83.2±3.4 (An77.4-90.7, n=35) | ||||||||||||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |