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Northwest Africa 14406
Basic information Name: Northwest Africa 14406
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14406
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 29 g
Classification
  history:
Recommended:  CK3    [explanation]

This is 1 of 68 approved meteorites classified as CK3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites
Comments: Approved 15 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14406 (NWA 14406)

(Northwest Africa)

Purchased: 2021 Aug

Classification: Carbonaceous chondrite (CK3)

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

Physical characteristics: Two dark brownish to black fragments without fusion crust.

Petrography: The meteorite displays a dark brownish interior and is composed of sharply defined separated chondrules (apparent mean diameter about 800 µm) and sparse CAIs in a matrix dominated by Ni-bearing ferroan olivine. Olivines and low-Ca pyroxene in chondrules often show strong compositional zoning. More minor phases include intermediate plagioclase, Ca-pyroxene, troilite, and pentlandite; metal was no detected. Cr-bearing magnetite is abundant. The meteorite is strongly altered and contains secondary calcite.

Geochemistry: olivine: Fa25.0±8.8 (Fa6.1-30.9, NiO=0.43±0.14 wt%, n=12); low-Ca pyroxene: Fs12.3±10.4Wo0.9±0.2 (Fs2.1-26.8Wo0.6-1.3, n=9); Ca-pyroxene: Fs12.1±1.2Wo37.2±2.7 (Fs10.9-13.2Wo34.5-39.9, n=2); feldspar: An15.7-18.9Ab76.4-79.7Or4.3-5.4, n=4; magnetite contains 3.13±0.03 wt% Cr2O3, n=3

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Ouarzazate, Morocco
Date:P 2021 Aug
Mass (g):29
Pieces:2
Class:CK3
Shock stage:S2
Weathering grade:high
Fayalite (mol%):25.0
Ferrosilite (mol%):12.3; 12.1
Wollastonite (mol%):0.9; 37.2
Magnetic suscept.:4.58
Classifier:A. Greshake, MNB
Type spec mass (g):6.6
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 8402 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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