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Northwest Africa 13562
Basic information Name: Northwest Africa 13562
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13562
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 90 g
Classification
  history:
Recommended:  Lodranite    [explanation]

This is 1 of 86 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 28 Nov 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13562 (NWA 13562)

(Northwest Africa)

Purchased: 2020

Classification: Primitive achondrite (Lodranite)

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

Physical characteristics: Light-brownish fragment with minor fusion crust.

Petrography: The meteorite shows a coarse-grained granular texture predominantly composed of up to 4 mm sized magnesian olivine and low-Ca pyroxene grains. Some regions are brecciated. More minor phases include Ca-pyroxene, chromite, kamacite, and FeS. Ca-pyroxene is mostly presents as fine exsolution lamellae in low-Ca pyroxene. No feldspar was found in the section studied.

Geochemistry: olivine: Fa10.7±0.2 (FeO/MnO=32±3, n=10); low-Ca pyroxene: Fs10.7±0.4Wo2.4±0.3, (FeO/MnO=21±2, n=10); Ca-pyroxene: Fs3.7±0.1Wo45.6±0.4, (FeO/MnO=12±1, n=14)

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020
Mass (g):90
Pieces:1
Class:Lodranite
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):10.7
Ferrosilite (mol%):10.7; 3.7
Wollastonite (mol%):2.4; 45.6
Classifier:A. Greshake, MNB
Type spec mass (g):18
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
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 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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