Meteoritical Bulletin: Entry for Northwest Africa 3147

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Northwest Africa 3147

Basic information

Name: Northwest Africa 3147
This is an OFFICIAL meteorite name.
Abbreviation: NWA 3147
Observed fall: No
Year found: 2005
Country: Morocco
Mass: 290 g

Classification
history:

Meteoritical Bulletin:	MB 89	(2005)	Eucrite
MetBase:	v. 7.1	(2006)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 603 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Writeup

Writeup from MB online:

Northwest Africa 3147

Morocco

Purchased 2005 January

Achondrite (eucrite)

A single, 70% crusted stone (290 g) was purchased from a Moroccan dealer in Tagounite by G. Hupé (Hupé) in 2005 January. Classification and mineralogy (A. Irving and S. Kuehner, UWS): Granular textured aggregate of exsolved pigeonite and anorthite (An_91.0-93.1Or_0.4), with accessory silica polymorph (with abundant troilite inclusions), ilmenite and chromite. The pyroxene grains consist of prominent exsolution lamellae of augite (Fs_25.0-27.1Wo_42.4-44.4, FeO/MnO = 33.6-37.0) within orthopyroxene (Fs_60.5-61.0Wo_1.5-2.4, FeO/MnO = 30.3-33.0) The texture and mineralogy of this specimen are very similar to those of NWA 3137 (which was analyzed concurrently), and it is very likely that these two specimens are paired stones. Specimens: type specimen, 20.3 g, and one polished thin section, UWS; main mass, xHupé.

Data from:
  MB89
  Table 7
  Line 483:

Origin or pseudonym:	Morocco
Place of purchase:	Tagounite
Date:	2005
Mass (g):	290
Pieces:	1
Class:	Euc
Ferrosilite (mol%):	60.5-61
Type spec mass (g):	20.3
Comments:	Aug Fs25-27Wo42-44; May be paired with NWA3137; Undefined note: UWS means University of Washington, Department of Geological Sciences, Box 351310, Seattle, WA 98195, USA

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)
xHupé: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)

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Photos:

Credit	Photos
Photos from the Encyclopedia of Meteorites:
Don Edwards
Meteorites Australia
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Andreas Grünemeyer
Gerald Armstrong
Gregor H.

Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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Revision
history:

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