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Northwest Africa 15031
Basic information Name: Northwest Africa 15031
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15031
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 22.5 g
Classification
  history:
Recommended:  Lodranite    [explanation]

This is 1 of 89 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 6 Aug 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15031 (NWA 15031)

(Northwest Africa)

Purchased: 2022 Mar

Classification: Primitive achondrite (Lodranite)

History: Purchased by Ziyao Wang in March 2022 from a dealer in Agadir, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Relatively coarse grained protogranular aggregate (grainsizes up to ~1.2 mm) composed of predominantly olivine and diopside with subordinate ferroan enstatite and accessory kamacite and chromite (Ti-free and V-bearing).

Geochemistry: Olivine (Fa10.6-11.0, FeO/MnO = 23-24, N = 4), enstatite (Fs9.6±0.0Wo1.3-1.5, FeO/MnO = 13-14, N = 3), diopside (Fs3.2-3.9Wo45.6-45.2, FeO/MnO = 7-9, N = 3), kamacite (Ni 6.9 wt.%).

Classification: Lodranite.

Specimens: 4.9 g in the form of a polished endcut at UWB; remainder with WangZ.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2022 Mar
Mass (g):22.5
Pieces:1
Class:Lodranite
Shock stage:low
Weathering grade:low
Fayalite (mol%):10.6-11.0
Ferrosilite (mol%):3.2-3.9; 9.6±0.0
Wollastonite (mol%):45.2-45.6; 1.3-1.5
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):4.9
Type spec location:UWB
Main mass:WangZ
Comments:Work name WZY-104; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
WangZ: Ziyao Wang, Hebei GEO University North Campus, Huai An dong road 127, Shijiazhuang, Hebei Province , China (private address; updated 25 Jun 2021)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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)
Ziyao Wang      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8636 approved meteorites from (Northwest Africa) (plus 1884 unapproved names)

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