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Bechar 009
Basic information Name: Bechar 009
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 897 g
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 329 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 23 Feb 2023
Writeup from MB 112:

Bechar 009        30°53.8917’N, 3°23.1783’W

Bechar, Algeria

Find: Dec 2021

Classification: Lunar meteorite (feldspathic breccia)

History: Found December 2021 in Algeria near Mechraa Houari Bou; subsequently purchased in February 2022 by Craig Zlimen.

Physical characteristics: Single stone with slightly weathered exterior and absent fusion crust.

Petrography: (D. Sheikh, Cascadia) Specimen is a polymict breccia comprised of mm to cm-sized lithic clasts and mm-sized mineral clasts set within a mostly fine-grained matrix containing accessory ilmenite, titanomagnetite, troilite, and SiO2-rich glass. Certain areas in the matrix contain melt pockets, melt veins, recrystallized melt, and vesicles. Clast lithologies identified include anorthosites, impact melt clasts, norites and noritic anorthosites; unusual clast lithologies are also observed, including a silica-bearing ferroan wehrlite and an alkali feldspar granite (~35 vol. % silica, ~55 vol. % potassium feldspar, ~6 vol. % plagioclase feldspar, Av. grain size ~0.1 mm in longest dimension, contains regions displaying graphic textures). Plagioclase feldspar has been transformed into maskelynite in some regions of the sample.

Geochemistry: Olivine (Fa50.4±31.9, range Fa12.8-86.7, Fe/Mn=89±14, n=25), Low-Ca Pyroxene (Fs23.4±4.0Wo2.6±0.7, range Fs20.6-26.2Wo2.6-0.7, Fe/Mn=55±5, n=2), Pigeonite (Fs42.8±23.5Wo8.6±2.7, range Fs25.8-69.6Wo6.6-11.7, Fe/Mn=64±4, n=3), High-Ca Pyroxene (Fs30.3±15.1Wo38.1±4.8, range Fs5.8-43.3Wo26.6-44.2, Fe/Mn=62±14, n=21), Calcic Plagioclase (An94.1±2.3Or0.3±0.3, range An90.5-97.7Or0.1-1.4, n=23). Alkali feldspar granite clast [Plagioclase (An42.3±1.1Or1.5±0.1, range An41.5-43.0Or1.5-1.6, n=2), Potassium Feldspar (An8.1±2.2Or64.5±5.3, range An5.7-10.0Or60.0-70.3, n=3)].

Classification: Lunar (feldspathic breccia).

Specimens: 22.3 g at Cascadia, 174 g with Jason Phillips, main mass with Craig Zlimen.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Desert
Date:Dec 2021
Mass (g):897
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):50.4±31.9
Ferrosilite (mol%):23.4±4.0, 42.8±23.5, 30.3±15.1
Wollastonite (mol%):2.6±0.7, 8.6±2.7, 38.1±4.8
Classifier:D. Sheikh, Cascadia
Type spec mass (g):22.3
Type spec location:Cascadia
Main mass:Craig Zlimen
Comments:CML 1612; submitted by Daniel Sheikh
   and collections
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 2011)
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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     Recommended::   (30° 53' 54"N, 3° 23' 11"W)

     This is 1 of 33 approved meteorites from Bechar, Algeria (plus 1 unapproved name)
     This is 1 of 1315 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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