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Northwest Africa 14213
Basic information Name: Northwest Africa 14213
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14213
Observed fall: No
Year found: 2018
Country: Algeria
Mass:help 265 g
Classification
  history:
Recommended:  LL4    [explanation]

This is 1 of 389 approved meteorites classified as LL4.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Sep 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14213 (NWA 14213)

Algeria

Find: 2018

Classification: Ordinary chondrite (LL4)

History: Purchased by David Fletcher in 2019 from Mostapha in Algeria.

Physical characteristics: Sample contains visible fusion crust. A slice taken of the sample reveals an assortment of clasts.

Petrography: (D. Sheikh, Cascadia) Sample is a brecciated chondrite composed of chondrules and sub-angular clasts (up to 5 mm) set within a fine-grained matrix containing accessory troilite.

Geochemistry: Olivine (Fa28.1±0.6, range Fa26.4-29.1, n=18), Low-Ca pyroxene (Fs24.1±5.2Wo1.3±0.4, range Fs10.3-31.7Wo0.5-2.0, n=18).

Classification: Ordinary chondrite (LL4).

Specimens: 20.6 g and a thin section at Cascadia; main mass with David Fletcher.

Data from:
  MB110
  Table 0
  Line 0:
Date:2018
Mass (g):265
Pieces:1
Class:LL4
Shock stage:S2
Weathering grade:W3
Fayalite (mol%):28.1±0.6
Ferrosilite (mol%):24.1±5.2
Wollastonite (mol%):1.3±0.4
Classifier:D. Sheikh, Cascadia
Type spec mass (g):20.6
Type spec location:Cascadia
Main mass:David Fletcher
Comments:Submitted by Daniel Sheikh
Institutions
   and collections		 Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1277 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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