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Northwest Africa 11108
Basic information Name: Northwest Africa 11108
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11108
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 62 g
Meteoritical Bulletin:  MB 106  (2018)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 449 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 17 Feb 2017
Writeup from MB 106:

Northwest Africa 11108 (NWA 11108)

(Northwest Africa)

Purchased: 2015

Classification: HED achondrite (Howardite)

History: Purchased by Larry Atkins from Morocco in November 2015.

Physical characteristics: Single stone, no fusion crust. A saw cut reveals a fragmental breccia with clasts up to 4 mm.

Petrography: (C. Agee, UNM) This meteorite is a polymict breccia consisting of ~60% eucritic material and ~40% diogenitic material. Accessory Fe-metal, troilite and ilmenite were observed.

Geochemistry: (C. Agee and B. Ha, UNM) diogenite olivine Fa38.7±8.7, Fe/Mn=48±1, n=3; diogenite low Ca pyroxene Fs26.5±2.9Wo2.9±0.4, Fe/Mn=29±2, n=7; eucrite low Ca pyroxene Fs54.5±8.5Wo4.6±2.6, Fe/Mn=32±2, n=5; eucrite high Ca pyroxene Fs40.4±11.2Wo24.7±15.4, Fe/Mn=32±5, n=4; plagioclase An90.4±3.0Ab9.2±2.9Or0.4±0.2, n=7.

Classification: Howardite

Specimens: 12.8 g including a probe mount on deposit at UNM, Larry Atkins holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):62
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):38.7±8.7
Ferrosilite (mol%):26.5±2.9; 54.5±8.5; 40.4±11.2
Wollastonite (mol%):2.9±0.4; 4.6±2.6; 24.7±15.4
Classifier:C. Agee, UNM
Type spec mass (g):12.8
Type spec location:UNM
Main mass:Larry Atkins
Comments:Field name LA-3; 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)
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     This is 1 of 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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