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Northwest Africa 10908 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10908 This is an OFFICIAL meteorite name. Abbreviation: NWA 10908 Observed fall: No Year found: 2016 Country: Morocco Mass: 4.86 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 633 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||||||||
Comments: | Approved 6 Apr 2017 | ||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 106:
Northwest Africa 10908 (NWA 10908) Morocco Purchased: 2016 Classification: Carbonaceous chondrite (CM2) Petrography: The sample consists of about 20% chondrules, chondrule fragments and some small CAIs. The matrix is rich in phyllosilicates. Most chondrules have a size of about 200-500 μm and many are surrounded by fine-grained, phyllosilicate-rich dust rims. Randomly selected olivines analyzed in chondrules and chondrule fragments revealed a mean composition of Fa13.7±19.5 with a range of Fa0.4-73.7. Most low-Ca pyroxene is enstatite (Fs<2), but also some low Ca-pyroxene with somewhat higher Fs-content exists (e.g., Fs8). The olivine shows undulatory extinction. Thus, the rock is very weakly shocked (S2). The sample is strongly weathered and most of the metal has been oxidized. | ||||||||||||||||||||||||||||||||
Data from: MB106 Table 0 Line 0: |
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Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) |
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Catalogs: |
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References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography: |
Statistics: This is 1 of 2049 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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