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Northwest Africa 13234
Basic information Name: Northwest Africa 13234
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13234
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 341 g
Classification
  history:
Recommended:  LL7    [explanation]

This is 1 of 68 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 5 Apr 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13234 (NWA 13234)

(Northwest Africa)

Purchased: 2019

Classification: Ordinary chondrite (LL7)

History: The meteorite was purchased from a meteorite dealer in Mauritania.

Physical characteristics: Five dark-brownish rocks without fusion crust. Exhibits dark grayish cut face.

Petrography: The meteorite displays a recrystallized texture of abundant olivine and less abundant low-Ca pyroxene and feldspar. Feldspar grain size is about 60 µm; some poorly defined relict chondrules are present. Opaque phases are minor magnetite and abundant sulfides, the latter often finely dispersed in the silicates. No metal is present in the thin section studied.

Geochemistry: Feldspar: An8.9Ab84.3Or6.8 (n=3)

Classification: LL7. The opaque mineralogy is unusual, as is the low magnetic susceptibility.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2019
Mass (g):341
Pieces:5
Class:LL7
Shock stage:S1
Weathering grade:W1
Fayalite (mol%):31.1±0.2 (n=12)
Ferrosilite (mol%):24.9±0.2 (n=12)
Wollastonite (mol%):2.9±0.5 (n=12)
Magnetic suscept.:3.06
Classifier:A. Greshake, MNB
Type spec mass (g):29.9
Type spec location:MNB
Main mass:Boulaouane Taleb Ahmed
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7472 approved meteorites from (Northwest Africa) (plus 1988 unapproved names)

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