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Northwest Africa 12303
Basic information Name: Northwest Africa 12303
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12303
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 56.2 g
Classification
  history:
Recommended:  LL3    [explanation]

This is 1 of 316 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 27 Jul 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12303 (NWA 12303)

Morocco

Purchased: 2017

Classification: Ordinary chondrite (LL3)

History: (Ziyao Wang) Purchased by Ziyao Wang from Adnane Sami during the China (Hunan) Mineral & Gem Show in Chenzhou City in May 2017.

Physical characteristics: (Ziyao Wang) Dark brown flat stone of 56.2 g without fusion crust

Petrography: (R. Bartoschewitz, Bart) well defined chondrules (0.4-2.2 mm, av. 1 mm) of various types (PO, POP, RP, BO), chondrule fragments, and CAIs are set in dark-brown oxidized matrix.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa23.4±7.4 (n=12); pyroxene Fs20.6±7.0Wo0.7±0.4 (n=10); An15Or<1 (n=1); chromite CRAL78, FFM93 (n=3). Kamacite Ni=5.5, Co=1.4 (n=3); taenite Ni=36.2, Co=0,4 (n=1) (all wt.-%). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.70

Classification: ordinary chondrite (LL3, S2)

Specimens: 11.3 g on deposit at Kiel, Ziyao Wang holds the main mass, and 7.5 g with Bart. Polished thin sections Bart and IfP

Data from:
  MB108
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Chenzhou, Hunan
Date:P 2017
Mass (g):56.2
Pieces:1
Class:LL3
Shock stage:S2
Fayalite (mol%):23.4±7.4 (n=12)
Ferrosilite (mol%):20.6±7.0 (n=10)
Wollastonite (mol%):0.7±0.4
Magnetic suscept.:3.70
Classifier:R. Bartoschewitz
Type spec mass (g):11.3
Type spec location:Kiel
Main mass:Ziyao Wang
Finder:anonymous
Comments:working name WZ26; submitted by R. Bartoschewitz
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Lehmweg 53, D-38518 Gifhorn, Germany; Website (private address; updated 4 Aug 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Wang Ziyao            
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1386 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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