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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 384 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 Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1187 approved meteorites from Algeria (plus 28 unapproved names) (plus 4 impact craters)

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