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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 763 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 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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     This is 1 of 1166 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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