NWA 11266 Lunar Feldspathic Breccia Meteorite 1.1 gram fragment

Description

NORTH WEST AFRICA 11266
LUNAR FELDSPATHIC BRECCIA METEORITE
1.1 GRAM FRAGMENT
This rare Lunar meteorite
has been studied and classified by World renowned Anthony J. Irving and team at University of Washington, Seattle.
Northwest Africa 11266
Basic information
Name:
Northwest Africa 11266
This is an OFFICIAL meteorite name.
Abbreviation:
NWA 11266
Observed fall:
No
Year found:
2017
Country:
(Northwest Africa)
Mass:
1017 g
Classification
history:
Meteoritical Bulletin:
MB 106
(2018)
Lunar (feldsp. breccia)
Recommended:
Lunar (feldsp. breccia)
This is 1 of 287 approved meteorites classified as Lunar (feldsp. breccia)
Comments:
Approved 28 Jun 2017
Writeup
Writeup from MB 106
Northwest Africa 11266
(NWA 11266)
(Northwest Africa)
Purchased: 2017 Apr
Classification: Lunar meteorite (feldspathic breccia)
History
: Material excavated from a site near Tindouf, Algeria was purchased by John Higgins in April 2017 from a Moroccan dealer.
Petrography
: (A. Irving and S. Kuehner,
UWS
) Breccia composed of mineral clasts of anorthite, olivine, exsolved pigeonite, orthopyroxene, augite, fayalite, Ti-chromite, kamacite, taenite and troilite in a finer grained matrix containing small vesicles.
Geochemistry
: Olivine (Fa
20.8-54.4
, FeO/MnO = 87-105, N = 3), orthopyroxene (Fs
17.0
Wo
2.9
, FeO/MnO = 53), orthopyroxene host (Fs
37.9
Wo
4.8
, FeO/MnO = 55), clinopyroxene exsolution lamella (Fs
16.9
Wo
41.9
, FeO/MnO = 41), augite (Fs
8.6
Wo
43.1
, FeO/MnO = 41), plagioclase (An
96.4-96.9
Or
0.1-0.2
, N = 2).
Classification
: Lunar (feldspathic regolith breccia).
Specimens
: 21 g including one polished endcut at
UWB
; remainder with Mr. J. Higgins.
Data from:
MB 106
Table 0
Line 0:
Place of purchase:
Morocco
Date:
P 2017 Apr
Mass (g):
1017
Pieces:
many
Class:
Lunar (feldsp. breccia)
Shock stage:
low
Weathering grade:
low
Fayalite (mol%):
20.8-57.4
Ferrosilite (mol%):
17.0; 8.6
Wollastonite (mol%):
2.9; 43.1
Classifier:
A. Irving and S. Kuehner, UWS
Type spec mass (g):
21
Type spec location:
UWB
Main mass:
J. Higgins
Comments:
Work name JH17-4; submitted by A. Irving
Institutions
and collections
University of Washington, Department of Earth and Space Sciences
University of Washington,
GUARANTEED AUTHENTICITY
Member of the Meteoritical Society & International Meteorite Collectors Association #9822 The authenticity of this meteorite has a 100% guarantee. Signed Certificate of Authenticity Included. First class delivery and provenance provided exhibiting important details of the classification & petrography.
1cm scale cube for reference purposes.
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