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Northwest Africa 13332 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13332 This is an OFFICIAL meteorite name. Abbreviation: NWA 13332 Observed fall: No Year found: 2005 Country: (Northwest Africa) Mass: 17.8 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 82 approved meteorites classified as CK3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 4 Jul 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13332 (NWA 13332) (Northwest Africa) Purchased: 2005 Classification: Carbonaceous chondrite (CK3) History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005, subsequently acquired by the Hollis Collection and then donated to PSF. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) This small stone has experienced considerable desert weathering resulting in pervasive staining by iron hydroxides. Well-formed granular chondrules (apparent diameter 1080±570 µm, N = 21) containing rounded grains of altered Cr-magnetite plus sparse very fine grained CAI are set in a fine grained matrix (~25 vol.%, deep red-brown in thin section) containing altered Cr-magnetite, kamacite and troilite. CAI are composed of mainly of gehlenite together with diopside, spinel, taenite, hercynite and pentlandite. Geochemistry: Olivine (Fa36.2±20.2, range Fa0.3-59.2, N = 6), low-Ca pyroxene (Fs27.2±17.6Wo0.6±0.1, range Fs6.9-39.0Wo0.5-0.6, N = 3), subcalcic augite (Fs47.4Wo20.7), diopside (Fs3.0Wo40.0),plagioclase (An94.3Or0.0), magnetite (Cr2O3 = 1.6 wt.%). Classification: Carbonaceous chondrite (CK3). Specimens: The entire specimen including one polished thin section is at PSF. | ||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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