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Northwest Africa 13133
Basic information Name: Northwest Africa 13133
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13133
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 90 kg
Classification
  history:
Recommended:  EL6    [explanation]

This is 1 of 120 approved meteorites classified as EL6.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 9 Feb 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13133 (NWA 13133)

(Northwest Africa)

Find: unknown

Classification: Enstatite chondrite (EL6)

History: Purchased by Wei Jiang in 2018 from Morocco.

Physical characteristics: Many fragments are severly weathered. The masses of the individual fragments are in a range of 20 to 300 g. The total mass is ~90 kg.

Petrography: (J. Ji, S. Hu and Y. Lin, IGGCAS) One relict chondrule was found, ~3 mm in diameter. The meteorite is mainly composed of enstatite, with minor albite, daubreelite, silica, troilite, and kamacite. Most metal grains are oxidized. Some kamacite grains less than 10 mm are found in enstatite.

Geochemistry: Mineral compositions and geochemistry: (J. Ji, S. Hu and Y. Lin, IGGCAS) Enstatite Fs0.5±0.2En98.1±0.3Wo1.4±0.1 (n=23), Plagioclase An15.3±0.6Ab80.7±0.7(n=5), kamacite contains ~1 wt% silicon

Classification: (J. Ji, S. Hu and Y. Lin, IGGCAS) Enstatite chondrite (EL6)

Specimens: The main mass is held by Wei Jiang.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Morocco
Date:unknown
Mass (g):90000
Pieces:Many
Class:EL6
Shock stage:moderate
Weathering grade:W4
Ferrosilite (mol%):0.5
Wollastonite (mol%):1.4
Classifier:J. Ji, S. Hu and Y. Lin, IGGCAS
Type spec mass (g):618
Type spec location:IGGCAS
Main mass:Wei Jiang
Comments:Submitted by J. Ji, S. Hu and Y. Lin, IGGCAS
Institutions
   and collections
IGGCAS: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 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 7354 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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