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Northwest Africa 13601
Basic information Name: Northwest Africa 13601
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13601
Observed fall: No
Year found: 2017
Country: Algeria
Mass:help 176 g
Recommended:  L3    [explanation]

This is 1 of 795 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 5 Dec 2021
Writeup from MB 110:

Northwest Africa 13601 (NWA 13601)

Algeria, (Northwest Africa)

Find: 2016

Classification: Ordinary chondrite (L3)

History: A single stone weighing 176 g was found by an anonymous finder in Western Sahara and purchased in 2017 at the Erfoud Market, then shipped to Lucian Cojocaru.

Physical characteristics: The main mass, markedly stained and with several cracks, displays no fusion crust.

Petrography: (V. Moggi Cecchi, L. Fabrizi, G. Pratesi, UniFi): The thin section displays a marked chondritic texture, with various chondrule types (PP, PO and BO), sometimes rimmed with metal, set in a fine grained matrix. Both olivine and orthopyroxene are rather inhomogeneous. Iron oxides, Fe-Ni alloys and troilite are the main opaque phases and can be found as individual grains scattered in the matrix or rimming chondrules.

Geochemistry: EMP (V. Moggi Cecchi, G. Pratesi UniFi); Olivine in both chondrules and matrix (Fa22.3±6.6Fo77.7±6.4; n=47; Fe/Mn = 48.8); low-Ca pyroxene in both chondrules and matrix (Fs16.1±4.0En83.3±3.9Wo0.7±0.3; n=30; Fe/Mn = 26.5)

Classification: Ordinary Chondrite (L3); S1; W3

Specimens: Lucian Cojocaru owns the main mass, weighing 176 g; the type specimen, weighing 21.4 g, and one thin section are on deposit at MSN-FI (Inventory # I-3617)

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Mass (g):176.0
Shock stage:S1
Weathering grade:W3
Fayalite (mol%):22.3±6.6 (N=47)
Ferrosilite (mol%):16.3±4.0 (N=30)
Wollastonite (mol%):2.5±0.3
Classifier:V. Moggi Cecchi, L. Fabrizi
Type spec mass (g):21.4
Type spec location:MSN-FI
Main mass:Lucian Cojocaru
Comments:Provisional name NWA 13601; Inventory # I-3617; submitted by Vanni Moggi Cecchi
   and collections
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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     This is 1 of 1236 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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