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Northwest Africa 10155
Basic information Name: Northwest Africa 10155
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10155
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 277 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 11 Jun 2015
Writeup from MB 104:

Northwest Africa 10155 (NWA 10155)

(Northwest Africa)

Purchased: 2015

Classification: Primitive achondrite (Lodranite)

History: Purchased by Blaine Reed in Tucson from a Moroccan meteorite dealer in 2015.

Physical characteristics: Single stone. Saw cuts and polished surfaces reveal dark-brown colored mosaic of reflective crystals and metal grains.

Petrography: (C. Agee, UNM) Examination of a polished mount shows polygonal pyroxene and olivine grains with numerous triple junctions. The average grain size is 700±300 μm, n=25. Metal and sulfide make up approximately 10% by volume of this meteorite. Accessory chromite and schreibersite were observed.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa4.9±0.2, Fe/Mn=10±0, n=6; low Ca pyroxene Fs8.5±0.1Wo2.5±0.1, Fe/Mn=10±0, n=3; diopside Fs3.8±0.2Wo42.0±1.5, Fe/Mn=7±1, n=3.

Classification: Achondrite (Lodranite).

Specimens: 21.2 g including a probe mount on deposit at UNM, Reed holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2015
Mass (g):277
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):4.9±0.2
Ferrosilite (mol%):8.5±0.1, 3.8±0.2
Wollastonite (mol%):2.5±0.1, 42.0±1.5
Classifier:C. Agee, UNM
Type spec mass (g):21.2
Type spec location:UNM
Main mass:Blaine Reed
Comments: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)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, 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 9344 approved meteorites from (Northwest Africa) (plus 1872 unapproved names)

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