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Northwest Africa 10452
Basic information Name: Northwest Africa 10452
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10452
Observed fall: No
Year found: 2014
Country: Morocco
Mass:help 12.5 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 508 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 31 Dec 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10452 (NWA 10452)

Morocco

Purchased: 2014 May 26

Classification: HED achondrite (Eucrite)

History: The history of the meteorite is unknown, except that it was purchased by L. A. Taylor from Abdellah Alfiniss.

Physical characteristics: The small stone is dark and covered by fusion crust.

Petrography: The meteorite consists of 37% low-Ca pyroxene, 15% high-Ca pyroene, 44% plagioclase, 3% silica, and less than 1% minor minerals (troilite, ilmenite, chromite, and apatite. The rock has a subophitic, non-brecciated texture, but is highly fractured. Grain sizes extend up to 2 mm.

Geochemistry: Pigeonite Fs59±2Wo3±1 (n=20), Augite Fs11±1Wo30±2 (n=13). Plagioclase is An82±3 (n=18).

Classification: The meteorite is an unusual basaltic eucrite, with higher high-Ca pyroxene than in other meteorites of this class.

Specimens: 4.0 g at SI

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Knoxville, TN
Date:P 2014 May 26
Mass (g):12.5 g
Pieces:1
Class:Eucrite
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):59.1±2 (n=20), 11±1 (n=13)
Wollastonite (mol%):3.0±1 (n=20), 30±2 (n=13)
Classifier:H. McSween, UTenn
Type spec mass (g):4.0 g
Type spec location:SI
Main mass:UTenn
Finder:unknown
Comments:Submitted by H. McSween, Univ of Tennessee
Institutions
   and collections
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
UTenn: Planetary Geosciences Institute, Department of Earth and Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996-1410, United States (institutional address; updated 1 Nov 2011)
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:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1652 approved meteorites from Morocco (plus 23 unapproved names) (plus 1 impact crater)

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