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Northwest Africa 10210
Basic information Name: Northwest Africa 10210
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10210
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 504 g
Meteoritical Bulletin:  MB 104  (2015)  Acapulcoite
Recommended:  Acapulcoite    [explanation]

This is 1 of 86 approved meteorites classified as Acapulcoite.   [show all]
Search for other: Acapulcoite-lodranite family, Acapulcoites, and Primitive achondrites
Comments: Approved 18 Jul 2015
Writeup from MB 104:

Northwest Africa 10210 (NWA 10210)

(Northwest Aftica)

Purchased: 2015

Classification: Primitive achondrite (Acapulcoite)

History: Purchased by Adam Aaronson in Morocco, 2015.

Physical characteristics: Weathered brown exterior. A saw cut reveals a mosaic of very fine-grained polygonal crystals, also scattered metal/sulfide grains.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows pyroxene, olivine, and plagioclase grains with apparent mean diameter 200±100 μm (n=40). Numerous grain boundary triple junctions throughout, abundant metal/oxide sulfide veinlets in grain boundaries and crosscutting silicate crystals. Apatite detected.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa10.6±0.2, Fe/Mn=22±1, n=5; low-Ca pyroxene Fs11.9±0.1Wo2.3±0.2, Fe/Mn=15±0, n=3; diopside Fs4.9±0.2Wo44.2±1.0, Fe/Mn=11±0, Cr2O3=1.18±0.13 (wt%), n=3, plagioclase Ab77.5±1.5An20.3±1.7Or2.2±0.2, n=2.

Classification: Acapulcoite, not lodranite, based on presence of plagioclase, and grain size typical for an acapulcoite.

Specimens: 26.6 g including a probe mount on deposit at UNM; Aaronson holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):504
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):10.6±0.2
Ferrosilite (mol%):11.9±0.1, 4.9±0.2
Wollastonite (mol%):2.3±0.2, 44.2±1.0
Classifier:C. Agee, UNM
Type spec mass (g):26.6
Type spec location:UNM
Main mass:Aaronson
Comments:M1831; submitted by C. Agee
   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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
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 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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