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Northwest Africa 10419
Basic information Name: Northwest Africa 10419
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10419
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 207 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 14 Dec 2015
Writeup from MB 104:

Northwest Africa 10419 (NWA 10419)

(Northwest Africa)

Purchased: 2015

Classification: Primitive achondrite (Lodranite)

History: Purchased by Adam Aaronson in Morocco, 2015.

Physical characteristics: Weathered exterior. A saw cut reveals dark brown and orange crystals ~1 mm in diameter.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows 70% pyroxene grains and 20% olivine grains. Numerous metal and iron oxide veinlets throughout. Kamacite, taenite, chromite, troilite, and Cl-rich apatite detected, plagioclase is absent.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa7.5±0.9, Fe/Mn=15±1, n=7; low-Ca pyroxene Fs11.0±0.1Wo3.1±0.2, Fe/Mn=13±1, n=4; diopside Fs5.5±0.4Wo41.2±1.1, Fe/Mn=9±0, Cr2O3=1.54±0.02 (wt%), n=2.

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

Specimens: 26 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):207
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):7.5±0.9
Ferrosilite (mol%):11.0±0.1, 5.5±0.4
Wollastonite (mol%):3.1±0.2, 41.2±1.1
Classifier:C. Agee, UNM
Type spec mass (g):26
Type spec location:UNM
Main mass:Aaronson
Comments:M1850; 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 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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