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Northwest Africa 10043
Basic information Name: Northwest Africa 10043
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10043
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 1556 g
Meteoritical Bulletin:  MB 104  (2015)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 91 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 7 Apr 2015
Writeup from MB 104:

Northwest Africa 10043 (NWA 10043)

(Northwest Africa)

Purchased: January 2015

Classification: Primitive achondrite (Lodranite)

History: Purchased in New York City from a Moroccan dealer.

Physical characteristics: One piece. A saw cut shows a mosaic of dark gray grains, some of which are as large as 1 cm. There are a few scattered, fine-grained, opaque minerals present.

Petrography: (C. Agee, UNM) This lodranite consists of large poikilitic augite host crystals up to 1000 μm containing smaller olivines (~400 μm) and a few percent low-Ca pyroxene. Accessory phases include metal, oxidized metal, chromite, troilite, and a phosphate; no plagioclase was found.

Geochemistry: (C. Agee and N. Muttik, UNM) Augite Fs7.6±0.3Wo42.5±0.7, Fe/Mn=16±1, Cr2O3=1.16±0.05, n=10; low-Ca pyroxene Fs16.5±0.9Wo2.4±0.0, Fe/Mn=20±1, n=2; olivine Fa14.5±0.2, Fe/Mn=27±1, n=13.

Classification: Lodranite, not an acapulcoite based on coarse grain size and absence of plagioclase.

Specimens: 20.6 g including a probe mount on deposit at UNM, DPitt holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:New York City
Date:P January 2015
Mass (g):1556
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):14.5±0.2
Ferrosilite (mol%):7.6±0.3, 16.5±0.9
Wollastonite (mol%):42.5±0.7, 2.4±0.0
Classifier:C. Agee, UNM
Type spec mass (g):20.6
Type spec location:UNM
Main mass:Darryl Pitt
Comments:Field name MAC 107; submitted by C. Agee, UNM
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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