Meteoritical Bulletin: Entry for Northwest Africa 4927

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Northwest Africa 4927

Basic information

Name: Northwest Africa 4927
This is an OFFICIAL meteorite name.
Abbreviation: NWA 4927
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass: 338 g

Classification
history:

Meteoritical Bulletin:	MB 111	(2023)	CV3
Recommended:			CV3 [explanation]

This is 1 of 470 approved meteorites (plus 2 unapproved names) classified as CV3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 19 Mar 2022

Writeup

Writeup from MB 111:

Northwest Africa 4927 (NWA 4927)

(Northwest Africa)

Purchased: 2006

Classification: Carbonaceous chondrite (CV3)

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 fresh dark grayish interior and is composed of large chondrules (mean diameter about 0.9 mm; up to 2 mm sized), CAIs (up to 5 mm sized), and olivine amoeboids all set into a fine-grained matrix. Opaque phases are pentlandite, troilite, and rare metal.

Data from:
  MB111
  Table 0
  Line 0:

Place of purchase:	Erfoud, Morocco
Date:	P 2006
Mass (g):	338
Pieces:	1
Class:	CV3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	7.8±7.7 (0.2-21.6, n=20)
Ferrosilite (mol%):	1.3±0.2 (1.0-1.5, n=10)
Wollastonite (mol%):	0.8±0.1 (0.8-0.9, n=10)
Classifier:	A. Greshake, MNB
Type spec mass (g):	20.1
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. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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