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Northwest Africa 14411
Basic information Name: Northwest Africa 14411
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14411
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 780 g
Classification
  history:
Recommended:  Winonaite    [explanation]

This is 1 of 74 approved meteorites classified as Winonaite.   [show all]
Search for other: Primitive achondrites, Winonaites
Comments: Approved 15 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14411 (NWA 14411)

(Northwest Africa)

Purchased: 2020

Classification: Primitive achondrite (Winonaite)

History: The meteorite was purchased from a dealer in Algeria.

Physical characteristics: Two dark brownish fragments without fusion crust.

Petrography: The meteorite displays a fine-grained recrystallized texture with frequent 120 degree triple junctions. It is predominantly composed of typically 50 to 300 µm sized low-Ca pyroxene, forsteritic olivine, Ca-pyroxene, and less abundant sodic feldspar grains. Kamacite, taenite, and troilite are mostly finely dispersed throughout the meteorite. Some metal veins are present. The meteorite contains minor apatite.

Geochemistry: olivine: Fa3.9±0.1 (Fa3.7-3.9 FeO/MnO=17±1, n=5); low-Ca pyroxene: Fs4.8±0.2Wo1.9±0.1 (Fs4.6-5.0Wo1.8-2.0, FeO/MnO=13±2, n=5); Ca-pyroxene: Fs1.6±0.2Wo45.3±0.3 (Fs1.4-1.9Wo44.9-45.5, FeO/MnO=12±3, n=5); feldspar: An23.0±1.0Ab74.5±0.9Or2.5±0.2, n=5

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2020
Mass (g):780
Pieces:2
Class:Winonaite
Shock stage:S1
Weathering grade:low
Fayalite (mol%):3.9
Ferrosilite (mol%):4.8; 1.6
Wollastonite (mol%):1.9; 45.3
Magnetic suscept.:4.87
Classifier:A. Greshake, MNB
Type spec mass (g):20.4
Type spec location:MNB
Main mass:Mateusz Szyszka
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)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
MS      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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