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Northwest Africa 13385 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13385 This is an OFFICIAL meteorite name. Abbreviation: NWA 13385 Observed fall: No Year found: 2015 Country: Morocco Mass: ![]() | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 21 approved meteorites classified as CVred3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 5 Sep 2020 | ||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 13385 (NWA 13385) Drâa-Tafilalet, Morocco Purchased: 2015 Classification: CVred3 History: Mohamed Boukbot found the samples in the desert 3.8 km NE of the town of Mezguida, Drâa-Tafilalet, Morocco. Many samples were distributed to a number of dealers and subsequently purchased by John Higgins in 2015. Physical characteristics: Type specimens are dark-light brown and have an irregular-shaped exterior. The cut face shows the interior is composed of abundant chondrules and refractory inclusions. The color variation of the interior of some stones show regions stained by FeOH minerals indicating variable weathering. Petrography: Description and classification (A. Love, App): Sample shows brecciated chondritic texture composed of distinct chondrules with an average diameter of 640 μm (n=51), fragments, refractory inclusions (CAIs and AOAs) and a single xenolithic clast set within a fine-grained opaque oxidized matrix (~55 vol%). Some porphyritic chondrules contain rounded inclusions of FeNi metal. The 2 × 3mm lithic clast contains unequilibrated chondrules with an average diameter of 112 μm (n=10). Geochemistry: (A. Love, App) Olivine Fa6.4±8.0 (Fa0.3-33.0, n=18); low-Ca pyroxene Fs1.2±0.4Wo1.8±1.4 (Fs0.7-2.2Wo0.8-2.8, n=12); high-Ca pyroxene Fs1.8Wo31.1 (n=1). Sulfides contain 0.31±0.24 wt% Ni, n=18. Classification: Carbonaceous chondrite (CVred3). Chondrule diameter, modal abundance of matrix, and abundant CAIs indicate sample is CV3. Presence of FeNi metal in silicates, wt% Ni in sulfides and magnetic susceptibility indicate the sample belongs to the CVred group (Bonal et al. (2020), Gattacceca et al. (2020)). Specimens: John Higgins holds the main mass. Many slices and endcuts totaling 37.82 g and a polished thin section and mount are on deposit at App. | ||||||||||||||||||||||||||||||||||||
Bibliography: |
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Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Photos: |
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Geography:![]() |
Statistics: This is 1 of 2 approved meteorites from Drâa-Tafilalet, Morocco This is 1 of 1932 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater) |