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| Northwest Africa 2821 | |||||||||||||
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| Basic information | Name: Northwest Africa 2821 This is an OFFICIAL meteorite name. Abbreviation: NWA 2821 Observed fall: No Year found: 2003 Country: Morocco Mass:  384 g | ||||||||||||
| Classification history: |
This is 1 of 9 approved meteorites classified as R3.8. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||
| Writeup |
Writeup from MB 89:
Northwest Africa 2821
Morocco Found 2003 Rumuruti chondrite (R3.8) A single stone of 384 g was purchased from Moroccan mineral and fossil dealers in 2003. It was probably found in the Zagora region of Morocco. Mineralogy and classification (J. Schlüter, Hamburg): The sample is brecciated; olivine fragments in matrix Fa39.25-0.63 (range Fa38.5-40.6, n=11), olivine in chondrules Fa37.52-5.85 (range Fa17.3-40.7, n=22), NiO in olivine, average 0.16 wt.%; orthopyroxene Fs13.79G8.52 (range Fs6.55-30.1, n=6); clinopyroxene (mean Fs10.95,En45.36,Wo43.68, n=3). Chromium spinel (mean, n=2: FeO 40.51, MgO 0.97, MnO 0.34, Al2O3 5.05, Cr2O3 44.15, TiO2 5.81). Chondrule size (n=35, 405 μm). Weathering grade: W3, shock stage: S2. Specimens: type specimen, 21.8 g, Mineralogical Museum Hamburg, the main mass is with I. Herkstroeter, Hamburg. | ||||||||||||
| Institutions and collections |
Herkstroeter: Ingo Herkstroeter, Hamburg, Germany (private address) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Geography:
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Statistics: This is 1 of 1556 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater) | ||||||||||||