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Northwest Africa 13211
Basic information Name: Northwest Africa 13211
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13211
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 55 g
Classification
  history:
Recommended:  Eucrite    [explanation]

This is 1 of 472 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 29 Feb 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13211 (NWA 13211)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Eucrite)

History: The meteorite was purchased from a Morrocan dealer at the mineral show in Hamburg, Germany.

Physical characteristics: Twelve dark-grayish fragments, some of which partly covered with fusion crust.

Petrography: The meteorite is a medium-grained monomict breccia composed of exsolved pyroxene and plagioclase grains up to 0.8 mm in size. Minor phases include silica, ilmenite, chromite, FeS, and metallic iron. Contains several shock melt veins and pockets.

Geochemistry: low-Ca pyroxene: Fs58.5±0.4Wo2.5±0.5 (Fs57.6-59.1Wo1.9-3.6, FeO/MnO=27-28, n=13); Ca-pyroxene: Fs25.8±0.7Wo43.0±0.8 (Fs24.7-27.3Wo41.8-44.1, FeO/MnO=25-32, n=13); calcic plagioclase: An90.2±0.5 (An89.5-90.9, n=14)

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Hamburg, Germany
Date:P 2019
Mass (g):55
Pieces:12
Class:Eucrite
Shock stage:low
Weathering grade:moderate
Ferrosilite (mol%):58.5; 25.8
Wollastonite (mol%):2.6; 43.0
Classifier:A. Greshake, MNB
Type spec mass (g):12.5
Type spec location:MNB
Main mass:Hanno Strufe
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. 109, in preparation (2020)
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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