Meteoritical Bulletin: Entry for Northwest Africa 1647

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Northwest Africa 1647

Basic information

Name: Northwest Africa 1647
This is an OFFICIAL meteorite name.
Abbreviation: NWA 1647
Observed fall: No
Year found: 2002
Country: (Northwest Africa)
Mass: 313 g

Classification
history:

Meteoritical Bulletin:	MB 87	(2003)	Eucrite-unbr
MetBase:	v. 7.1	(2006)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 573 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Writeup

Writeup from MB 87:

Northwest Africa 1647

Morocco

Purchased 2002 September

Achondrite (eucrite)

A complete fusion-crusted stone (313 g) acquired from a Moroccan dealer was subsequently purchased at the Denver Mineral Show in 2002 September by A. and G. Hupé (xHupé). Classification and mineralogy (A. Irving and S. Kuehner, UWS): fine grained with subophitic texture; most grains are fractured. Composed of a single lithology that has crosscutting veinlets of very fine grained, comminuted crystalline debris. The meteorite contains anorthite laths (Ab5), exsolved pigeonite (clinopyroxene lamellae in orthopyroxene), some larger orthopyroxene grains, silica polymorph, ilmenite, troilite and chromite. Minor calcite occurs in a veinlet. Mineral composition: orthopyroxene (Wo2.3Fs61.7, FeO/MnO = 32.0) and clinopyroxene (Wo43.8Fs22.8, FeO/MnO = 29.6). Specimens: type specimen, 20 g, and one polished thin section, UWS; main mass, xHupé.

Data from:
  MB87
  Table 8
  Line 211:

Place of purchase:	Erfoud
Date:	P Sep 2002
Mass (g):	313
Pieces:	1
Class:	Euc ub
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	20
Main mass:	Hupé

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. 87, MAPS 38, A189-A248 (2003)

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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)
Gerald Armstrong

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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