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Northwest Africa 13163
Basic information Name: Northwest Africa 13163
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13163
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 416 g
Classification
  history:
Recommended:  Diogenite    [explanation]

This is 1 of 443 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 9 Feb 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13163 (NWA 13163)

(Northwest Africa)

Purchased: 2019

Classification: HED achondrite (Diogenite)

History: The meteorite was purchased from a local meteorite dealer in Nouadhibou, Mauritania.

Physical characteristics: Greyish to slightly greenish rock with some patches of fusion crust.

Petrography: The meteorite displays a light-greenish interior and is a monomict breccia predominantly composed of blocky up to 3 mm sized orthoproxene grains and more fine-grained cataclastic regions. Minor phases include plagioclase, silica, chromite, FeS, and metallic iron; no olivine has been found in the section studied.

Geochemistry: low-Ca pyroxene: Fs24.9±0.2Wo2.9±0.1 (Fs24.6-25.2Wo2.8-3.2, n=11, FeO/MnO=26-30); calcic plagioclase: An92.9±0.8 (An91.6-93.8, n=11)

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P 2019
Mass (g):416
Pieces:1
Class:Diogenite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):24.9
Wollastonite (mol%):2.9
Classifier:A. Greshake, MNB
Type spec mass (g):21.4
Type spec location:MNB
Main mass:R. Lenssen
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 7377 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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