Meteoritical Bulletin: Entry for Northwest Africa 11070

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Northwest Africa 11070

Basic information

Name: Northwest Africa 11070
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11070
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 144.6 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	CV3
Recommended:			CV3 [explanation]

This is 1 of 602 approved meteorites (plus 1 unapproved name) classified as CV3. [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites

Comments:

Approved 17 Feb 2017

Writeup

Writeup from MB 106:

Northwest Africa 11070 (NWA 11070)

(Northwest Africa)

Purchased: 2016 Apr

Classification: Carbonaceous chondrite (CV3)

History: Purchased by Darryl Pitt in April 2016 from a dealer in Mauritania.

Petrography: (A. Irving and S. Kuehner, UWS) Granular chondrules (apparent diameter 900 ± 700 µm) and relatively abundant irregularly-shaped, fine grained CAI (some containing grossmanite) are set in a red-brown matrix (~25 vol.%).

Geochemistry: Olivine (Fa_1.2-66.7, N = 3), orthopyroxene (Fs_0.7-1.1Wo_1.3-0.8, N = 3), Al-Ti-diopside in CAI (Fs_0.3Wo_53.3, Al₂O₃ = 6.7 wt.%, TiO₂ = 0.47 wt.%), grossmanite in CAI (Fs_0.0Wo_67.2, Al₂O₃ = 20.5 wt.%, TiO₂ = 8.6 wt.%).

Classification: Carbonaceous chondrite (CV3).

Specimens: 20.4 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Mauritania
Date:	P 2016 Apr
Mass (g):	144.6
Pieces:	1
Class:	CV3
Shock stage:	S2
Weathering grade:	low
Fayalite (mol%):	1.2-66.7
Ferrosilite (mol%):	0.7-1.1
Wollastonite (mol%):	1.3-0.8
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	20.4
Type spec location:	UWB
Main mass:	DPitt
Comments:	MVCH 69; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)

Catalogs:

References:

Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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