Meteoritical Bulletin: Entry for Northwest Africa 4611

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Northwest Africa 4611

Basic information

Name: Northwest Africa 4611
This is an OFFICIAL meteorite name.
Abbreviation: NWA 4611
Observed fall: No
Year found: 2006
Country: (Northwest Africa)
Mass: 242 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	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 29 May 2012

Writeup

Writeup from MB 100:

Northwest Africa 4611 (NWA 4611)

(Northwest Africa)

Purchased: May 2006

Classification: Carbonaceous chondrite (CV3)

History: The meteorite was found by an anonymous person in northwest Africa and bought by H. Strufe in Erfoud, Morocco.

Physical characteristics: One dark brown fragment, without fusion crust, weighing 242.1 g.

Petrography: Specimen is composed of abundant up to several-mm sized chondrules embedded in a dark brownish matrix. Refractory inclusions include whitish CAIs and irregularly shaped olivine amoeboids; metal is rare.

Geochemistry: Olivine, Fa_0.2-10.6; pyroxene, Fs_0.5-1.Oxygen Isotopes (I. A. Franchi and R. C. Greenwood, OU): δ¹⁷O = -3.302, δ¹⁸O = 1.321, Δ¹⁷O = -3.989 (all per mil).

Classification: Carbonaceous chondrite (CV3); S2, W2/3.

Specimens: 22 g plus one polished thin section are on deposit at MNB.

Data from:
  MB100
  Table 1
  Line 1175:

Place of purchase:	Erfoud, Morocco
Date:	P May 2006
Mass (g):	242.1
Pieces:	1
Class:	CV3
Shock stage:	S2
Weathering grade:	W2/3
Fayalite (mol%):	1.2 (0.2-10.6)
Ferrosilite (mol%):	0.8 (0.5-1)
Classifier:	A. Greshake, MNB
Type spec mass (g):	22
Type spec location:	MNB
Main mass:	H. Strufe
Comments:	Submitted by Ansgar Greshake

Plots:

O isotopes:

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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