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Northwest Africa 14357
Basic information Name: Northwest Africa 14357
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14357
Observed fall: No
Year found: 2020
Country: Morocco
Mass:help 24 g
Recommended:  L3    [explanation]

This is 1 of 819 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 13 Nov 2021
Writeup from MB 110:

Northwest Africa 14357 (NWA 14357)


Purchased: 2020 Jun

Classification: Ordinary chondrite (L3)

History: A small single stone weighing 24 g was purchased by Salaheddin Samrani at Erfoud in June 2020

Physical characteristics: The main mass is almost completely covered by black fusion crust.

Petrography: (V. Moggi Cecchi, L. Fabrizi, G. Pratesi, UniFi): The thin section shows a marked chondritic texture, with easily discernible chondrules of various types (PP, PO, RP and BO) set in a fine-grained matrix. Olivine is slightly inhomogeneous while orthopyroxene is rather inhomogeneous. Iron oxides, Fe-Ni alloys and troilite are the main opaque phases and can be found scattered in the matrix as individual grains in the matrix or rimming chondrules

Geochemistry: EMP (V. Moggi Cecchi, L. Fabrizi, G. Pratesi, UniFi): Olivine in chondrules and matrix Fa23.4±1.8 (Fa PMD = 8.5 %, Fe/Mn = 46; n=15); low-Ca pyroxene in both chondrules and matrix (Fs13.0±4.9En786.1±5.0Wo0.9±0.3; Fe/Mn = 29; n=33);

Classification: Ordinary Chondrite (L3); S2; W2.

Specimens: The main mass, weighing 20 g, is owned by Salaheddin Samrani; the type specimen, weighing 4.8 g, and one thin section are on deposit at MSN-FI (Inventory # I-3663).

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2020 Jun
Mass (g):24
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):23.4±1.8 (N=15)
Ferrosilite (mol%):13.0±4.8 (N=33)
Wollastonite (mol%):0.9±0.1
Classifier:V. Moggi Cecchi, L. Fabrizi, G. Pratesi
Type spec mass (g):4.8
Type spec location:MSN-FI
Main mass:Samrani
Comments:Field SAM2;Inv.# I-3663;; submitted by Vanni Moggi Cecchi
   and collections
SAM: Department of Mineralogy, South Australian Museum, North Terrace, Adelaide, South Australia 5000, Australia; Website (institutional address; updated 18 Oct 2011)
MSN-FI: Museo di Storia Naturale “La Specola”, Sez. Mineralogia – Sistema Museale dell'Università degli Studi di Firenze Via Giorgio La Pira, 4 – 50121 Firenze, Italy; Website (institutional address; updated 24 Oct 2022)
UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013)
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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Public domain photographs:
Vanni Moggi Cecchi   


     This is 1 of 1991 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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