Northwest Africa 11272
Basic information Name: Northwest Africa 11272
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11272
Observed fall: No
Year found: 1995
Country: (Northwest Africa)
Mass:help 475 g
Recommended:  LL4    [explanation]

This is 1 of 322 approved meteorites classified as LL4.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 11 May 2017
Writeup from MB 106:

Northwest Africa 11272 (NWA 11272)

(Northwest Africa)

Purchased: 1995

Classification: Ordinary chondrite (LL4)

History: Purchased by Ken Regelman in 1995 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) The specimen contains closely packed, well-formed and equilibrated chondrules with little matrix.

Geochemistry: Olivine (Fa27.4-28.1, N = 3), orthopyroxene (Fs20.8-22.7Wo0.6-1.1, N = 2), pigeonite (Fs11.8Wo6.8; Fs19.7Wo16.0; N = 2), subcalcic augite (Fs14.0Wo29.8).

Classification: Ordinary chondrite (LL4).

Specimens: 24 g including one polished thin section at UWB; remainder with Mr. K. Regelman.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 1995
Mass (g):475
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):27.4-28.1
Ferrosilite (mol%):20.8-22.7
Wollastonite (mol%):0.6-1.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):24
Type spec location:UWB
Main mass:K. Regelman
Comments:Work name ARN17-2; submitted by A. Irving
   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)
ARN: Kenneth Regelman, Astronomical Research Network, 206 Bellwood Ave., Maplewood, MN 55117, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 106, in preparation (2017)