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Northwest Africa 10582
Basic information Name: Northwest Africa 10582
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10582
Observed fall: No
Year found: 2015
Country: Morocco
Mass:help 9.2 kg
Meteoritical Bulletin:  MB 105  (2016)  H4-melt breccia
Recommended:  H4-melt breccia    [explanation]

This is 1 of 8 approved meteorites (plus 1 unapproved name) classified as H4-melt breccia.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Mar 2016
Writeup from MB 105:

Northwest Africa 10582 (NWA 10582)

Morocco, (Northwest Africa)

Purchased: 2015 Feb

Classification: Ordinary chondrite (H4, melt breccia)

Physical characteristics: Single stone, dark brown crust. The sawn surface shows a black matrix with several metal spots and no evident chondrules.

Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi); The thin polished section displays a texture composed of clasts containing rare remnant chondrules within a dark, very fine-grained black matrix. The matrix contains scattered grains of metal and rounded troilite blebs. Shock stages are S2 for clasts and S5 for matrix.

Geochemistry: (V. Moggi Cecchi, G. Pratesi, S. Caporali, M.Zoppi, UniFi) Olivine (Fa 19.3±1.0, N=7), orthopyroxene (Fs 16.7±0.8Wo1.2±0.2, N = 8). Analyses were done for both clasts and matrix.

Classification: Ordinary Chondrite (H5-melt breccia); S5; W3

Specimens: A total of 21.2 g specimen and one thin section is on deposit at MSN-Fi. Tomelleri holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2015 Feb
Mass (g):9200
Class:H4-melt breccia
Shock stage:S1
Weathering grade:W3
Fayalite (mol%):19.3±1.0 (n=7)
Ferrosilite (mol%):16.7±0.8 (n=8)
Wollastonite (mol%):1.2±0.2
Classifier:V. Moggi Cecchi, S. Caporali, G Pratesi, UNI-FI
Type spec mass (g):21.2
Type spec location:MSN-FI
Main mass:Tomelleri
Comments: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 Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 1932 approved meteorites from Morocco (plus 27 unapproved names) (plus 1 impact crater)

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