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 201 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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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