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Northwest Africa 10476
Basic information Name: Northwest Africa 10476
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10476
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 46 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-cm
Recommended:  Eucrite-cm    [explanation]

This is 1 of 44 approved meteorites classified as Eucrite-cm.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 13 Apr 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10476 (NWA 10476)

(Northwest Africa)

Purchased: 2015

Classification: HED achondrite (Eucrite, cumulate)

History: The meteorite was purchased from the Moroccan meteorite dealer Med Lamine Ahmed.

Physical characteristics: Two small individuals partly covered with fusion crust were recovered from the north-African Sahara.

Petrography: The meteorite displays a light-grayish interior and is dominantly composed of large blocky low-Ca pyroxene and plagioclase. The mm-sized pyroxene grains often contain blobby augite. Minor phases include chromite and SiO2 polymorphs. The meteorite is highly shocked, i.e., plagioclase is partly converted to maskelynite.

Geochemistry: low-Ca pyroxene: Fs35.2±0.2Wo2.6±0.1 (Fs35.2-35.9Wo2.4-2.7, n=16, FeO/MnO=28-30), Ca-pyroxene: Fs15.2±0.1Wo43.1±0.3 (Fs15-15.4Wo42.6-43.6, n=15, FeO/MnO=30-31); calcic plagioclase: An84.9±0.8 (An83.6-86.2, n=25)

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):46
Pieces:2
Class:Eucrite-cm
Shock stage:strong
Weathering grade:low
Ferrosilite (mol%):35.2
Wollastonite (mol%):2.60
Classifier:A. Greshake, MNB
Type spec mass (g):9.2
Type spec location:MNB
Main mass:Philippe Schmitt-Kopplin
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstrasse 43, D-10115 Berlin, Germany (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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