Meteorite**NWA 13964, Lunar Anorthosite Breccia**2.096 grams, Gorgeous Slice!!!!

Description

Hello up for auction is NWA 13964 classified as a Lunar Anorthositic Breccia. This insanely beautiful fragment slice weighs 2.096 grams, and is Anorthositic breccia composed of >95 vol.% anorthitic plagioclase as both polymineralic lithic clasts (anorthosite, plagioclase-rich basalt) and mineral grains within a fine grained matrix. The most common mafic phase is olivine, but orthopyroxene, augite and pigeonite are also present, along with accessory Ti-chromite, troilite,
rare armalcolite
and minor secondary barite.
has an extra fine polish to both sides, comes with COA card and display case.
History: I  have 25 grams, aqured a single slice from Craig Zlimen in trade for a slice of NWA 13788 2021.
Northwest Africa 13964
(NWA 13964)
(Northwest Africa)
Purchased: 2021 Mar
Classification: Lunar meteorite (feldspathic breccia)
History
: Purchased by Craig Zlimen and Mark Lyon in March 2021 from an Algerian dealer. The main mass plus an additional piece were subsequently acquired by Alan Ginsberg.
Physical characteristics
: Two similar-appearing pieces (4630 g, 1900 g) lacking fusion crust, which are naturally broken portions of a single meteorite stone. The material is composed of relatively large beige and light gray, angular clasts in a medium gray matrix.
Petrography
: (A. Irving, UWS and P. Carpenter, WUSL) Anorthositic breccia composed of >95 vol.% anorthitic plagioclase as both polymineralic lithic clasts (anorthosite, plagioclase-rich basalt) and mineral grains within a fine grained matrix. The most common mafic phase is olivine, but orthopyroxene, augite and pigeonite are also present, along with accessory Ti-chromite, troilite, rare armalcolite and minor secondary barite.
Classification
: Lunar (anorthositic breccia).
Specimens
: 26.1 g including one polished thin section at UWB; 4630 g stone plus a 441 g piece from the 1900 g stone with Mr. A. Ginsberg; remainder held jointly by Mr. C. Zlimen and Mr. M. Lyon.
Place of purchase:
Algeria
Date:
P 2021 Mar
Mass (g):
6500
Pieces:
2
Class:
Lunar (feldsp. breccia)
Shock stage:
low
Weathering grade:
low
Fayalite (mol%):
23.2-33.3
Ferrosilite (mol%):
28.6-35.8; 24.4-29.4; 11.9-20.1
Wollastonite (mol%):
2.0-3.5; 9.2-9.5; 38.9-43.8
Classifier:
A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):
26.1
Type spec location:
UWB
Main mass:
A. Ginsberg/C. Zlimen/M. Lyon
Comments:
Work name ZLI035; submitted by A. Irving