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| Northwest Africa 11007 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 11007 This is an OFFICIAL meteorite name. Abbreviation: NWA 11007 Observed fall: No Year found: 2016 Country: Morocco Mass:  1898 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 75 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 30 Dec 2016 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 105:
Northwest Africa 11007 (NWA 11007) Morocco Purchased: Nov. 2016 Classification: Carbonaceous chondrite (CK3) History: Purchased by Ke Zuokai in Nov. 2016 from a Moroccan dealer. Physical characteristics: One single stone. No fusion crust. Petrography: A few chondrules (0.4 to 2.6 mm) are embedded in olivine-rich matrix (grain size ranging up to 160 μm). Fe-rich olivine is the dominant mineral phase. Most olivine is relatively homogeneous with a mean Fa content of 32.4. However, some of the large olivine grains in chondrules exhibit strong chemical zoning from Mg-rich cores (Fa0.3-3.3) to Fe-rich rims(Fa30.0-33.6). Accessory phases include Cr, Al-bearing magnetite and sulfide. Two small CAIs (~40 μm) composed of spinel and fassaite are identified. Geochemistry: Olivine: equilibrated 32.4±1.3 (n=21), unequilibrated Fa0.3-33.6 (n=18); Fe/Mn 107.7-164.5, plagioclase Ab74.2±5.4Or1.2±0.3 (n=25). Unequilibrated olivines are commonly present in chondrules with a few in the matrix. The PMD of Fa content of all analyzed olivine is 38.9% (n=39), and the PMD of Fs content of orthopyroxene is 6.0% (n=6). | ||||||||||||||||||||||||||||||
| Data from: MB105 Table 0 Line 0: |
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| Institutions and collections |
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:
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Statistics: This is 1 of 1932 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||