Meteoritical Bulletin: Entry for Northwest Africa 1911

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Northwest Africa 1911

Basic information

Name: Northwest Africa 1911
This is an OFFICIAL meteorite name.
Abbreviation: NWA 1911
Observed fall: No
Year found: 2003
Country: (Northwest Africa)
Mass: 53.1 g

Classification
history:

Meteoritical Bulletin:	MB 88	(2004)	Pallasite-pyroxene-rich
MetBase:	v. 7.1	(2006)	Pallasite-an
Recommended:			Pallasite, ungrouped [explanation]

This is 1 of 10 approved meteorites classified as Pallasite, ungrouped. [show all]
Search for other: Metal-rich meteorites, Pallasites

Comments:

Revised 26 May 2009: Classification from Bunch (2005)

Writeup

Writeup from MB 88:

Northwest Africa 1911

Morocco

Found 2002

Pallasite (pyroxene-rich)

A 53.07 g complete stone was purchased in Rissani, May 2003. Classification and mineralogy (J. Wittke and T. Bunch, NAU): high abundance of orthopyroxene; Mineral modes of 8 cm²(vol%): orthopyroxene, 34.5, olivine, 40.2, metal, 24.3, troilite and chromite, 1%. Orthopyroxene (mg# = 87.5, molar FeO/MnO = 21.6), olivine (mg# = 89.2, FeO/MnO = 34.5), kamacite (7.35 wt% Ni), taenite (33.9 wt% Ni), chromite (59.7 wt% Cr₂O₃). Weathering grade, W1. Specimens: type specimen, 13.1 g, NAU; main mass, MFarmer.

Data from:
  MB88
  Table 4
  Line 78:

Place of purchase:	Rissani
Date:	P Mar 2003
Mass (g):	53.07
Pieces:	1
Class:	Pal
Classifier:	T. Bunch and J. Wittke, NAU
Type spec mass (g):	13.1
Type spec location:	ASU
Main mass:	MFarmer
Comments:	pyroxene-rich; see separate entry

Institutions
and collections

ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012)
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012)
MFarmer: Michael Farmer, P.O. Box 86059, Tucson, AZ 85754-6059, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 88, MAPS 39, A215-A272 (2004)

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
David Hardy
Jay Piatek

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1870 unapproved names)

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