Meteoritical Bulletin: Entry for Northwest Africa 11039

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Northwest Africa 11039

Basic information

Name: Northwest Africa 11039
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11039
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 28.8 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	L4
Recommended:			L4 [explanation]

This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 30 Dec 2016

Writeup

Writeup from MB 105:

Northwest Africa 11039 (NWA 11039)

(Northwest Africa)

Purchased: 2014

Classification: Ordinary chondrite (L4)

History: One stone of 28.8 g was purchased in 2014 by Sergey Vasiliev in Morocco.

Physical characteristics: The cut surface shows well-defined chondrules and a low matrix abundance.

Petrography: (A. Bischoff, S. Ebert, IfP). In the polished thin section, numerous mostly porphyritic chondrules were observed embedded in a fine-grained matrix of low abundance, typical of ordinary chondrites. The chondrules are 0.5 mm in apparent diameter, typical for the L-group.

Geochemistry: Mineral compositions and geochemistry: (K. Klemm, A. Bischoff, IfP) olivine Fa_24.8±0.7(n=18); low-Ca pyroxene Fs_17.6±5.4Wo_0.5±0.3(n=19).

Specimens: 8.06 g including a polished thin section are at the IfP. Sergey Vasiliev holds the main mass.

Data from:
  MB105
  Table 0
  Line 0:

Origin or pseudonym:	Desert
Place of purchase:	Morocco
Date:	P 2014
Mass (g):	28.8
Pieces:	1
Class:	L4
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	24.8±0.7 (n= 18)
Ferrosilite (mol%):	17.6±5.4 (n=19)
Wollastonite (mol%):	0.5±0.3 (n=19)
Classifier:	K. Klemm, A. Bischoff, S. Ebert, IfP
Type spec mass (g):	8.06
Type spec location:	IfP
Main mass:	Sergey Vasiliev
Finder:	unknown
Comments:	Comments: Sample number: SV2016.08.24-05, submitted by Samuel Ebert; submitted by Samuel Ebert

Institutions
and collections

IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)

Catalogs:

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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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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