Lunar Meteorite Bechar 003 Feldspathic Breccia 4.1g windowed fragment OFFICIAL!

Description

BECHAR 003
LUNAR FELDSPATHIC BRECCIA METEORITE
4.1 GRAM WINDOWED FRAGMENT
INTRODUCING A WONDERFUL NEW LUNAR METEORITE FOUND IN ALGERIA
THIS DISCOVERY HAS A MICROVESICULAR MATRIX INCLUDING ANORTHITE AND SODIC BYTOWNITE, AMONG OTHER RARE MINERALS
OFFICIAL CLASSIFICATION DATA SOURCE:
The Meteoritical Society
International Society for Meteoritics and Planetary Science
Lunar and Planetary Institute
Meteoritical Bulletin Database
Bechar 003
Basic information
Name:
Bechar 003
This is an OFFICIAL meteorite name.
Abbreviation:
There is no official abbreviation for this meteorite.
Observed fall:
No
Year found:
2022
Country:
Algeria
Mass:
1522 g
Classification
history:
Recommended:
Lunar (feldsp. breccia)
This is 1 of 278 approved meteorites classified as Lunar (feldsp. breccia).
Comments:
Approved 20 Jun 2022
Writeup
Writeup from MB 111:
Bechar 003
30.887°N, 3.301°W
Bechar, Algeria
Find: 2022 Mar 24
Classification: Lunar meteorite (feldspathic breccia)
History
: Many small, similar-appearing stones were found together in Algeria on March 24, 2022, by a team represented by David Lehman. Some of the material was also acquired by John Higgins and Jasper Spencer.
Physical characteristics
: The stones (total 1522 g) lack fusion crust and have light brown weathered exteriors. Fresh interiors are medium gray with diffuse small white clasts and rare tiny metal grains visible.
Petrography
: (A. Irving,
UWS
and P. Carpenter,
WUSL
) Electron microprobe analyses were conducted on small slices from four separate stones. Although there is some mineralogical and compositional heterogeneity among these pieces, all consist of mineral clasts of calcic plagioclase (predominantly anorthite but also some sodic bytownite), olivine, low-Ca pyroxene and augite within a very fine grained, sparsely microvesicular matrix containing Ti-chromite, troilite, kamacite and minor secondary barite.
Geochemistry
: Calcic plagioclase (An
70.7-97.7
Or
1.1-0.0
, N = 12), olivine (Fa
22.9-49.5
, FeO/MnO = 86-114, N = 14), low-Ca pyroxene (23.1-26.5Wo
4.3-4.4
, Fe)/MnO = 56-57, N = 2), pigeonite (Fs
22.0-32.3
Wo
6.9-12.5
, FeO/MnO = 52-61, N =7), augite (Fs
11.9-19.4
Wo
35.8-38.6
, FeO/MnO = 42-52, N = 5).
Classification
: Lunar (feldspathic breccia).
Specimens
: 20.14 g including a composite four-slice polished thick section at
UWB
; 1064 g with Mr. D. Lehman; 483 g with Mr. J. Higgins and Mr. J. Spencer.
Data from:
MB111
Table 0
Line 0:
State/Prov/County:
Bechar
Date:
2022 Mar 24
Latitude:
30.887°N
Longitude:
3.301°W
Mass (g):
1522
Pieces:
many
Class:
Lunar (feldsp. breccia)
Shock stage:
moderate
Weathering grade:
low
Fayalite (mol%):
22.9-49.5
Ferrosilite (mol%):
23.1-26.5; 22.0-32.3; 11.9-19.4
Wollastonite (mol%):
4.3-4.4; 6.9-12.5; 35.8-38.6
Classifier:
A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):
20.14
Type spec location:
UWB
Main mass:
D. Lehman
Comments:
Work name DL 1110; submitted by A. Irving
Institutions
and collections
UWS
: University of Washington, Seattle,
WUSL
: Washington Univ., St. Louis,
UWB
: University of Washington
Catalogs:
References:
Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Geography:
Coordinates:
Recommended:
:
(30° 53' 13"N, 3° 18' 4"W)
Statistics:
This is 1 of 24 approved meteorites from
Bechar, Algeria
This is 1 of 1199 approved meteorites from
Algeria
(plus 28 unapproved names) (plus 4 impact craters)
IMCA ( INTERNATIONAL METEORITE COLLECTORS ASSOCIATION )
I AM MEMBER # 9822  JOHN HIGGINS. THIS METEORITE IS FROM MY PERSONAL COLLECTION. MY NAME MATCHES THE ONE LISTED IN THE METEORITICAL SOCIETY BULLETIN. I HAVE GONE THROUGH GREAT LENGTHS TO PERSONALLY PROCURE, CURATE, CUT, EXTENSIVELY POLISH AND PRESENT THIS METEORITE. THIS OFFICIALLY CLASSIFIED HIGH QUALITY METEORITE HAS CONTRIBUTED TO THE SCIENCE OF METEORITICS THROUGH RESEARCH LED BY THE WORLD RENOWN TEAM OF TONY IRVING AND PAUL CARPENTER.
GUARANTEED AUTHENTICITY
Member of the Meteoritical Society & International Meteorite Collectors Association 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 not included.
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