Meteoritical Bulletin: Entry for Northwest Africa 6701

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Northwest Africa 6701

Basic information

Name: Northwest Africa 6701
This is an OFFICIAL meteorite name.
Abbreviation: NWA 6701
Observed fall: No
Year found: 2011
Country: (Northwest Africa)
Mass: 80 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	CO3.1
Recommended:			CO3.1 [explanation]

This is 1 of 15 approved meteorites classified as CO3.1. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites

Comments:

Approved 23 Apr 2012

Writeup

Writeup from MB 100:

Northwest Africa 6701 (NWA 6701)

(Northwest Africa)

Purchased: 2011 Jan

Classification: Carbonaceous chondrite (CO3.1)

Petrography: Fresh specimen with well-formed, small chondrules in a dark matrix. Minerals are olivine, orthopyroxene, augite, chromite, kamacite and troilite.

Geochemistry: Olivine (Fa_0.9-50.8; Cr₂O₃ in ferroan olivine 0.07-1.13 wt.%, mean 0.34 wt.%, s.d. 0.40 wt.%, N = 7), orthopyroxene (Fs_1.2-5.2Wo_1.0-0.8), clinopyroxene (Fs_1.0-3.9Wo_37.4-38.0).

Classification: Carbonaceous chondrite (CO3.1). Subtype estimated from Cr₂O₃ distribution in ferroan olivine based on recommendations by Grossman and Brearley (2005).

Data from:
  MB100
  Table 1
  Line 1489:

Place of purchase:	Tucson
Date:	P 2011 Jan
Mass (g):	80
Pieces:	3
Class:	CO3.1
Shock stage:	S1
Weathering grade:	W1
Fayalite (mol%):	0.9-50.8
Ferrosilite (mol%):	1.2-5.2
Wollastonite (mol%):	1.0-0.8
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	16
Type spec location:	UWS
Main mass:	GHupe
Comments:	GH-389; submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)

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 7655 approved meteorites from (Northwest Africa) (plus 1972 unapproved names)

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