Meteoritical Bulletin: Entry for Northwest Africa 10633

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Northwest Africa 10633

Basic information

Name: Northwest Africa 10633
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10633
Observed fall: No
Year found: 2015
Country: Morocco
Mass: 42.5 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	LL5-melt breccia
Recommended:			LL5-melt breccia [explanation]

This is 1 of 7 approved meteorites classified as LL5-melt breccia. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 1 May 2016

Writeup

help

Writeup from MB 105:

Northwest Africa 10633 (NWA 10633)

Morocco

Purchased: Sep 2015

Classification: Ordinary chondrite (LL5, melt breccia)

History: Purchased by Hichame Mimaghador at the Erfoud Market in September 2015.

Physical characteristics: Single stone, dark brown crust. The sawn surface shows a gray matrix with gray-black portions and no evident chondrules.

Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi) The thin section displays a texture consisting of clasts with rare indistinct chondrules within a dark, very fine-grained black matrix. The matrix contains rounded troilite blebs and scattered grains of metal.

Geochemistry: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi) Olivine (Fa_30.9±0.6, N=7), orthopyroxene (Fs_25.4±0.6Wo_2.1±0.2, N = 7). Analyses were done for both clasts and matrix.

Classification: Ordinary Chondrite (LL5-melt breccia); S5; W2

Specimens: A total of 8.6 g specimen and one thin section is on deposit at MSN-FI. Mimaghador holds the main mass.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P Sep 2015
Mass (g):	42.5
Pieces:	1
Class:	LL5-melt breccia
Shock stage:	S5
Weathering grade:	W2
Fayalite (mol%):	30.9±0.6
Ferrosilite (mol%):	25.4±0.6
Wollastonite (mol%):	2.1±0.2
Classifier:	V. Moggi Cecchi, S. Caporali, G. Pratesi, UniFi
Type spec mass (g):	8.6
Type spec location:	MSN-FI
Main mass:	Mimaghador
Comments:	Submitted by Vanni Moggi Cecchi

Institutions
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)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full

Find references in NASA ADS:
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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Franco Vignato

Geography:

Morocco

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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