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Northwest Africa 5584 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 5584 This is an OFFICIAL meteorite name. Abbreviation: NWA 5584 Observed fall: No Year found: 2008 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 65 approved meteorites classified as R3. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 19 Mar 2022 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 111:
Northwest Africa 5584 (NWA 5584) (Northwest Africa) Purchased: 2008 Classification: Rumuruti chondrite (R3) History: The meteorite was purchased from a local meteorite dealer in Agadir, Morocco. Physical characteristics: Three brownish fragments without fusion crust. Petrography: The meteorite shows an unbrecciated dark brownish interior with well defined partly flattened chondrules (mean diameter about 400 µm) and individual mineral fragments in a matrix dominated by Fe-rich olivine. Olivine and low-Ca-pyroxene ae frequently compositionally zoned. Minor phases are Ca-pyroxene, sodic plagioclase, chromite, and sulfides; no metal detected. Geochemistry: olivine: Fa23.3±16.1 (Fa0.6-36.4, n=21); low-Ca pyroxene: Fs18.5±6.9Wo0.7±0.4 (Fs10.2-28.9Wo0.2-1.2, n=11); Ca-pyroxene: Fs5.7±0.6Wo37.6±1.9 (Fs4.9-6.7Wo35.2-39.4, n=5) | ||||||||||||||||||||||||||||||
Data from: MB111 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. 111, in preparation (2022)
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Photos: |
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |