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Northwest Africa 14412
Basic information Name: Northwest Africa 14412
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14412
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 340 g
Classification
  history:
Recommended:  CK5    [explanation]

This is 1 of 192 approved meteorites classified as CK5.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Approved 15 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14412 (NWA 14412)

(Northwest Africa)

Purchased: 2020

Classification: Carbonaceous chondrite (CK5)

History: The meteorite was purchased from a local dealer in Mauritania.

Physical characteristics: Dark grayish fragment partly covered fusion crust.

Petrography: The meteorite displays a grayish to slightly greenish interior and is composed of still clearly defined and well separated chondrules (apparent mean diameter about 800 µm, up to 1.5 mm) set in abundant recrystallized matrix. The dominating mineral phase in chondrules and matrix is ferroan Ni-bearing olivine. Minor phases are intermediate plagioclase, Ca-pyroxene, Cl-apatite, troilite, and pentlandite. Cr-rich magnetite is abundant; no metal was found in the section studied.

Geochemistry: olivine: Fa31.4±0.1 (Fa31.2-31.6, FeO/MnO=110±10; NiO=0.41±0.04 wt%, n=7); Ca-pyroxene: Fs9.7±0.4Wo47.6±0.6 (Fs9.1-10.3Wo46.8-48.5, n=7); feldspar: An56.7-61.2Ab37.8-41.9Or1.0-1.5, n=4; magnetite contains 6.1±0.4 wt% Cr2O3, n=3

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2020
Mass (g):340
Pieces:1
Class:CK5
Shock stage:S2
Weathering grade:low
Fayalite (mol%):31.4
Ferrosilite (mol%):9.7
Wollastonite (mol%):47.6
Magnetic suscept.:4.77
Classifier:A. Greshake, MNB
Type spec mass (g):21.3
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)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
MS   
Robert Smart   
Ryan Upchurch      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8394 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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