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Northwest Africa 7571
Basic information Name: Northwest Africa 7571
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7571
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 754 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 349 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 1 Jan 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7571 (NWA 7571)

(Northwest Africa)

Purchased: 2012

Classification: HED achondrite (Eucrite, polymict)

Petrography: The gray rock consists of basaltic and melt clast set in a fine-grained clastic matrix of dominantly calcic plagioclase and exsolved pyroxene. SiO2 polymorphs are quite abundant. Accessories include chromite, troilite and rare FeNi metal.

Geochemistry: opx: Fs26.5-59.1Wo1.4-4.6; FeO/MnO=28-37; cpx: Fs17.8-25.6Wo39.1-43.3; FeO/MnO=25-31

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2012
Mass (g):754
Pieces:1
Class:Eucrite-pmict
Shock stage:moderate
Weathering grade:moderate
Ferrosilite (mol%):26.5-59.1; 17.8-25.6
Wollastonite (mol%):1.4-4.6; 39.1-43.3
Classifier:A. Greshake, MNB
Type spec mass (g):20.8
Type spec location:MNB
Main mass:Stefan Ralew
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7472 approved meteorites from (Northwest Africa) (plus 1988 unapproved names)

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