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Northwest Africa 11003
Basic information Name: Northwest Africa 11003
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11003
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 950 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 398 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 30 Dec 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 11003 (NWA 11003)

Morocco

Purchased: 2016 May

Classification: HED achondrite (Howardite)

History: Purchased by Ke Zuokai in 2016 from a Moroccan dealer who wants to be anonymous.

Physical characteristics: An irregular stone with a fresh partial fusion crust.

Petrography: The sample is a polymict breccia with mineral and lithic clasts (up to ~2 mm) set in a fragmental matrix. Eucritic and diogenitic clasts are composed of orthopyroxene, pigeonite, augite and calcic plagioclase as well as minor olivine. A few pyroxene grains display exsolution lamellae. Other accessories include chromite and SiO2 polymorphs.

Geochemistry: Plagioclase (An89±1.7Or0.4±0.2), olivine (Fo69.5-72.7, n=2), pyroxene (FeO/MnO =31.2±1.6), olivine (FeO/MnO=61.3±5.4)

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Chenzhou,China
Date:P 2016 May
Mass (g):950
Pieces:1
Class:Howardite
Fayalite (mol%):28.9±2.2
Ferrosilite (mol%):28.2±6.2 (n=26); 48.9±10.5 (n=7); 36.8±4.2 (n=3)
Wollastonite (mol%):2.8±0.9 (n=26); 7.4±1.6 (n=7); 29±2.2 (n=3)
Classifier:Wu Y., PMO
Type spec mass (g):20
Type spec location:PMO
Main mass:Ke Zuokai
Comments:Submitted by Hsu W.
Institutions
   and collections
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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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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