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Northwest Africa 10381
Basic information Name: Northwest Africa 10381
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10381
Observed fall: No
Year found: 2014
Country: Morocco
Mass:help 28.3 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 386 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 1 Nov 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10381 (NWA 10381)

Beni-Tajjite, Morocco

Purchased: 2014 May 17

Classification: HED achondrite (Howardite)

History: Purchased in Erfoud May 17, 2014. Found in the Beni-Tajjite region, Morocco.

Physical characteristics: A single stone partially covered with a dull fusion crust. Cut surface reveals a gray, brecciated interior.

Petrography: Igneous brecciated rock. Main minerals are pyroxene and plagioclase. Minor phases: silica polymorph, metal, troilite. The groundmass is diogenitic and consists of mineral fragments in a clastic matrix. Most pyroxenes are exsolved, some zoned. A 5-mm eucrite clast makes up 20% of the observed section and has an ophitic to subophitic texture with exsolved pyroxene and typical grain size 600 μm.

Geochemistry: Pyroxene FeO/MnO=30.4±2.5 (N=11). Diogenite lithology pyroxene Fs31.1±4.7Wo7.1±5.6 (Fs22.6-37.8Wo2.2-17.5, N=6). Eucrite lithology orthopyroxene Fs59.0±1.5Wo5.3±1.7 (N=3), augite. Fs29.5±0.6Wo41.2±0.4 (N=2). log χ (× 10-9 m3/kg) = 3.01.

Classification: Howardite (based on the 20% eucrite material modal abundance in the observed section).

Specimens: 14.1 g at CEREGE. Main mass with P. Thomas

Data from:
  MB104
  Table 0
  Line 0:
State/Prov/County:Beni-Tajjite
Place of purchase:Erfoud, Morocco
Date:P 2014 May 17
Mass (g):28.3
Pieces:1
Class:Howardite
Weathering grade:moderate
Ferrosilite (mol%):31.1±4.7 (N=6) ; 59.0±1.5 (N=3)
Wollastonite (mol%):7.1±5.6 ; 5.3±1.7
Magnetic suscept.:3.01
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):14.1
Type spec location:CEREGE
Main mass:P. Thomas
Comments:Submitted by J. Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2 approved meteorites from Beni-Tajjite, Morocco
     This is 1 of 1523 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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