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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 811 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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| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:
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Statistics: This is 1 of 1973 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||