Meteoritical Bulletin: Entry for Northwest Africa 6027

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Northwest Africa 6027

Basic information

Name: Northwest Africa 6027
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6027
Observed fall: No
Year found: 2009
Country: (Northwest Africa)
Mass: 47 g

Classification
history:

Recommended:

CK3 [explanation]

This is 1 of 54 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 10 Mar 2020

Writeup

Writeup from MB 109:

Northwest Africa 6027 (NWA 6027)

(Northwest Africa)

Purchased: 2009

Classification: Carbonaceous chondrite (CK3)

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

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

Petrography: The meteorite displays a dark greenish interior and is composed of well separated and sharply defined chondrules (apparent mean diameter about 600 μm) set into abundant matrix dominated by Fe-rich olivine, intermediate plagioclase, and Cr-rich magnetite. Minor phases include Ca-pyroxene and FeNi-sulfide; no metal was detected.

Geochemistry: Fe-rich matrix olivine: Fa_31.1±0.3, FeO/MnO=107±9, n=11; unequilibrated olivine: Fa_21.1±7.9(Fa_9.9-30.4, n=18); low-Ca pyroxene: Fs_7.9±6.6Wo_1.4±0.5(Fs_1.0-20.5Wo_0.9-2.8, n=14); Ca-pyroxene: Fs_1.2±0.1Wo_42.3±0.6, n=5

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Erfoud, Morocco
Date:	P 2009
Mass (g):	47
Pieces:	1
Class:	CK3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	31.1; 21.1
Ferrosilite (mol%):	7.9; 1.2
Wollastonite (mol%):	1.4; 42.3
Classifier:	A. Greshake, MNB
Type spec mass (g):	9.6
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. 109, in preparation (2020)

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)
DCOM
Dirk Hohmann

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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