Meteoritical Bulletin: Entry for Northwest Africa 11052

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Northwest Africa 11052

Basic information

Name: Northwest Africa 11052
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11052
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass: 10.3 kg

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	L5
Recommended:			L5 [explanation]

This is 1 of 8890 approved meteorites (plus 5 unapproved names) classified as L5. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 26 Jan 2017

Writeup

Writeup from MB 106:

Northwest Africa 11052 (NWA 11052)

(Northwest Africa)

Purchased: 2006 Dec

Classification: Ordinary chondrite (L5)

History: Purchased from a Moroccan dealer at the mineral show (CCH) in Hamburg, Germany

Physical characteristics: Rounded individual with ablated fusion crust. About 10% relict fusion crust with regmaglypts. A shock vein (thickness ~1 mm) is visible.

Petrography: (K. Metzler, IfP) Ordinary chondrite with clearly visible chondrules of various petrologic types. Primary chondrule textures (phenocrysts, mesostasis) are preserved.

Geochemistry: Mineral compositions and geochemistry: (K. Metzler, IfP) The mean olivine composition is Fa_24.3±0.4(Fa_23.7-25.5); n=22; the mean low-Ca pyroxene composition is Fs_20.1±0.4(Fs_19.3-20.9); n=23

Classification: L chondrite based on mineral chemistry. Petrologic type 5 due to the equilibrated state of olivine and pyroxene but still clearly visible chondrules.

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Hamburg, Germany
Date:	P 2006 Dec
Mass (g):	10300
Pieces:	1
Class:	L5
Shock stage:	S3
Weathering grade:	W1
Fayalite (mol%):	24.3±0.4
Ferrosilite (mol%):	20.1±0.4
Classifier:	K. Metzler, IfP
Type spec mass (g):	31
Type spec location:	IfP
Main mass:	anonymous
Comments:	Submitted by K. Metzler, IfP

Institutions
and collections

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

Catalogs:

References:

Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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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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