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Northwest Africa 12546
Basic information Name: Northwest Africa 12546
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12546
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 156 g
Classification
  history:
Recommended:  LL7    [explanation]

This is 1 of 60 approved meteorites classified as LL7.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 15 May 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12546 (NWA 12546)

Chwichiva, Morocco

Find: 2018 Sep

Classification: Ordinary chondrite (LL7)

History: Found in september 2018 by Hammo Oulguirah. Bought in Agadir from finder.

Physical characteristics: Crusted stone with light grey interior.

Petrography: (J. Gattacceca, CEREGE) Highly recrystallized and brecciated chondrite. No relict chondrules was observed in the ~1 cm2 studied polished section. Plagioclase typical size 100 μm. Opaque minerals are Fe,Ni metal (mostyl under the form of zoned taenite), FeS, chromite.

Geochemistry: Plagioclase An10.2±0.2Ab86.2±0.4Or3.7±0.2 (n=3). Chromite Cr#=0.87.

Classification: Ordinary chondrite (LL7). Type 7 from the texture, absence of chondrules, Wo content of orthopyroxene.

Specimens: Type specimen at CEREGE. Main mass with Jean Redelsperger.

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Chwichiva
Place of purchase:Agadir
Date:2018 Sep
Mass (g):156
Pieces:1
Class:LL7
Weathering grade:W1
Fayalite (mol%):31.3±0.2 (n=4)
Ferrosilite (mol%):26.4 (n=1)
Wollastonite (mol%):1.9
Magnetic suscept.:3.49
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):25
Type spec location:CEREGE
Main mass:Jean Redelsperger
Finder:Hammo Oulguirah
Comments:work name JR056; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is the only approved meteorite from Chwichiva, Morocco
     This is 1 of 1386 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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