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| Northwest Africa 14445 | |||||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 14445 This is an OFFICIAL meteorite name. Abbreviation: NWA 14445 Observed fall: No Year found: 2021 Country: Morocco Mass:  596 g | ||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 783 approved meteorites (plus 1 unapproved name) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
| Comments: | Approved 11 Nov 2021 | ||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Northwest Africa 14445 (NWA 14445) Morocco Find: 2021 Classification: Ordinary chondrite (L3) History: A single stone was purchased from a Moroccan dealer by Sergey Vasiliev in Sept. 2021. Physical characteristics: The sample has dark brown exterior and is roughly tabular in shape. The cut face shows the interior has chondritic texture composed of abundant dark and light-colored chondrules set within a dark colored matrix. Petrography: Description and classification (A. Love, App) Sample contains ellipsoidal chondrules (aspect ratio of 1.55_0.23, n=73) that share a preferred orientation and an avg. (pre-deformed) diameter of 707µm, n=92 set within an opaque, clastic matrix. Many chondrules contain clear isotropic glass. Some chondrules contain relict grains. Additional minerals are: chromite, troilite and rare phosphates. Geochemistry: (A. Love, App) Olivine Fa15.5±12.2 (Fa0.6-41.0, Cr2O3 in ferroan olivine = 0.08±0.06, n=20, Fe/Mn=47.9±16.4, n=24); low-Ca pyroxene Fs11.9±9.0Wo1.1±1.2 (Fs2.2-26.6Wo0.2-3.9, Fe/Mn=18.5±9.5 n=14). Classification: Ordinary chondrite (L3, C-S4, W1). Based on textures, abundant glassy mesostasis, diversity of mineral compositions, Cr2O3 in ferroan olivine, CL characteristics, estimated subtype of sample is L3.3. Specimens: Sergey Vasiliev holds the 566.4 g main mass. A polished thin section and a 26.69 g slice and endcut are on deposit at App. | ||||||||||||||||||||||||||||||||
| Data from: MB110 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. 110, in preparation (2021)
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| Photos: |
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Geography:
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Statistics: This is 1 of 1837 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||