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Northwest Africa 14234
Basic information Name: Northwest Africa 14234
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14234
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 278 g
Classification
  history:
Recommended:  H7    [explanation]

This is 1 of 29 approved meteorites classified as H7.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 31 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14234 (NWA 14234)

(Northwest Africa)

Purchased: 2019 Jun

Classification: Ordinary chondrite (H7)

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

Physical characteristics: Two brownish rock without fusion crust. Polished surface shows a brownish mosaic of silicate grains with abundant metal.

Petrography: The meteorite exhibits a recrystallized texture with frequent triple junctions between adjoining minerals. Low-Ca pyroxene and feldspar often poikilitically enclose rounded olivine grains. FeNi metal is abundant. Accessory phases include troilite, low-Ti chromite, and merrillite. Grain boundaries are often decorated by iron oxides. No relict chondrules detected.

Geochemistry: olivine: Fa17.7±0.1 (Fa17.5-17.9, FeO/MnO=36±2, n=12); low-Ca pyroxene: Fs16.1±0.1Wo3.7±0.4 (Fs15.9-16.3Wo3.2-4.3, FeO/MnO=21±1, n=13); Ca-pyroxene: Fs8.7±0.3Wo40.4±0.5 (Fs8.1-9.0Wo39.9-41.5, FeO/MnO=16±1, n=12); feldspar: An32.8±0.6Ab65.8±0.5Or1.4±0.1, n=12

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Talsint, Morocco
Date:P 2019 Jun
Mass (g):277.6
Pieces:2
Class:H7
Shock stage:S1
Weathering grade:W2
Fayalite (mol%):17.7
Ferrosilite (mol%):16.1; 8.7
Wollastonite (mol%):3.7; 40.4
Classifier:A. Greshake, MNB
Type spec mass (g):23.7
Type spec location:MNB
Main mass:Noreddine Azelmat
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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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