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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 791 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 DELL'UNIVERSITA' DEGLI STUDI DI FIRENZE Via Giorgio La Pira, 4 – 50121 FIRENZE, Italy; Website (institutional address; updated 14 Jan 2015)
UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Public domain photographs:
Vanni Moggi Cecchi   


     This is 1 of 1894 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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