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Northwest Africa 13025
Basic information Name: Northwest Africa 13025
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13025
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 1700 g
Classification
  history:
Recommended:  Pallasite    [explanation]

This is 1 of 56 approved meteorites classified as Pallasite.   [show all]
Search for other: Metal-rich meteorites, Pallasites
Comments: Approved 1 Jan 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13025 (NWA 13025)

(Northwest Africa)

Purchased: 2016

Classification: Pallasite

History: The meteorite was purchased from a meteorite dealer in Zagora, Morocco.

Physical characteristics: Thirty two dark brownish fragments without fusion crust.

Petrography: The meteorite is composed of up to 1 cm sized subrounded olivine grains surrounded by a matrix of partly layered brownish iron oxides or hydroxides. Alteration products are also present along the olivine grain boundaries. Contains some Cr-bearing troilite but no pristine FeNi-metal was detected.

Geochemistry: Olivine: FeO/MnO=42±4, n=13

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Zagora, Morocco
Date:P 2016
Mass (g):1700
Pieces:32
Class:Pallasite
Shock stage:S1
Weathering grade:strong
Fayalite (mol%):13.3±0.1 (n=13)
Classifier:A. Greshake, MNB
Type spec mass (g):23
Type spec location:MNB
Main mass:anonymous
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)
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Geography: 
Coordinates:Unknown.

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

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