Meteoritical Bulletin: Entry for Northwest Africa 6026

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Northwest Africa 6026

Basic information

Name: Northwest Africa 6026
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6026
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass: 244 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 20 Dec 2021

Writeup

Writeup from MB 110:

Northwest Africa 6026 (NWA 6026)

(Northwest Africa)

Purchased: 2009

Classification: Carbonaceous chondrite (CK5)

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

Physical characteristics: Dark grayish rock partly covered with fusion crust.

Petrography: The meteorite displays a grayish to dark greenish interior and is composed of sparse, still clearly defined chondrules (apparent mean diameter about 800 µm) set in abundant recrystallized Fe-rich matrix. The dominant mineral phase is ferroan Ni-bearing olivine. Minor phases are Ca-pyroxene and plagioclase. Opaques phases are sulfides, and abundant Cr-rich magnetite; no metal was found.

Geochemistry: olivine: Fa_31.0±0.2(Fa_30.5-31.3, NiO=0.47±0.04 wt%, n=11); Ca-pyroxene: Fs_10.5±0.9Wo_47.1±0.8(Fs_9.1-12.1Wo_46.0-48.8n=7); feldspar: An_34.9-84.1Ab_16.0-61.7Or_0.2-3.4, n=8; magnetite contains 5.4±0.1 wt% Cr₂O₃, n=3

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Erfoud, Morocco
Date:	P 2009
Mass (g):	244
Pieces:	1
Class:	CK5
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	31.0
Ferrosilite (mol%):	10.5
Wollastonite (mol%):	47.1
Classifier:	A. Greshake, MNB
Type spec mass (g):	20
Type spec location:	MNB
Main mass:	Stefan Ralew
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Ralew: Stefan Ralew, Kunibertstraße 29, 12524 Berlin, Germany; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 110, in preparation (2021)

Find references in NASA ADS:
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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Gerald Armstrong	Photo added 19 Apr 2022

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8420 approved meteorites from (Northwest Africa) (plus 1900 unapproved names)

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