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Northwest Africa 10569
Basic information Name: Northwest Africa 10569
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10569
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 45.9 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 179 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 26 Mar 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10569 (NWA 10569)

(Northwest Africa)

Purchased: 2015

Classification: HED achondrite (Eucrite, brecciated)

History: The meteorite was bought in 2015 from the Moroccan meteorite dealers Med Lamine Ahmed and Cheikh El Fakraoui.

Petrography: The meteorite is a eucritic breccia composed of coarse basaltic clasts set into a fine-grained and commonly shock-melted matrix. Dominant minerals in both lithologies are exsolved pyroxene and up to 1 mm sized calcic plagioclase grains. Minor phases include chromite and silica polymorphs.

Geochemistry: Low-Ca pyroxene: Fs60.7±0.7Wo2.2±0.7 (Fs58.9-61.6Wo1.7-4, n=15, FeO/MnO=30-35); Ca-pyroxene: Fs26.5±0.9Wo43.9±1 (Fs26-29.8Wo40.2-44.6, n=16, FeO/MnO=29-40); calcic plagioclase: An90±1.9 (An85.2-92.4, n=15).

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):45.9
Pieces:1
Class:Eucrite-br
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):60.7; 26.5
Wollastonite (mol%):2.2; 43.9
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; updated 24 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
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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