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Northwest Africa 5586 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 5586 This is an OFFICIAL meteorite name. Abbreviation: NWA 5586 Observed fall: No Year found: 2008 Country: (Northwest Africa) Mass: 131 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 603 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 3 Dec 2014 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 5586 (NWA 5586) (Northwest Africa) Purchased: 2008 Classification: HED achondrite (Eucrite) Petrography: Eucritic breccia composed of basaltic fragments, impact melt clasts, and mineral fragments (dominantly pyroxene and calcic plagioclase) set in a fine-grained matrix. Pyroxene has fine exsolution lamellae. Minor phases include silica polymorphs, chromite, and rare FeNi metal. Geochemistry: low-Ca pyroxene: Fs55.2±0.8Wo5.4±1.6 (Fs53.3-56.7Wo2.8-8.2, FeO/MnO=31-35, n=14); Ca-pyroxene: Fs25±1.2Wo41.6±1.2 (Fs23.1-28.1Wo38.8-43.2, FeO/MnO=25-31, n=18); calcic plagioclase: An88.7±2 (An85.3-95, n=17) | ||||||||||||||||||||||||||||
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 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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