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Bechar 006
Basic information Name: Bechar 006
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2022
Country: Algeria
Mass:help 7.21 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 341 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 22 Oct 2022
Writeuphelp
Writeup from MB 111:

Bechar 006        30.894°N, 3.395°W

Bechar, Algeria

Purchased: 2022

Classification: Lunar meteorite (feldspathic breccia)

History: Hundreds of stones were reportedly found in March 2022 and subsequent months by meteorite hunters within the Bechar region, Algeria. About 7 kg of this material were bough by Mohamed Ali Loud, Miguel Angel Contreras Gomez, and Viktor Plamenov Ivanov

Physical characteristics: The material occurs in two different varieties. Samples found on the surface have light brown exteriors. The ones found buried have whitish exteriors with orange caliche. All stones lack fusion crust. Interiors are predominately gray with dark gray and white clasts. Some metal grains are macroscopically visible.

Petrography: (K. Metzler, IfP) Fine-grained polymict breccia, consisting of mineral fragments (mainly plagioclase, pyroxene, Ca-rich pyroxene, and olivine) and a few anorthositic lithic clasts, set in a compacted fine-grained matrix. The matrix partly represents a crystallized melt. Subrounded units of clast-rich impact melt rocks are admixed. Accessories are ilmenite, troilite, and Ni-bearing metal; one zircon grain (~25 µm) was observed.

Geochemistry: Mineral compositions and geochemistry: Olivine Fa28.3±6.4 (Fa17.5-40.1); mean Fe/Mn (at.): 112; n=8. Low-Ca pyroxene Fs26.4±4.0Wo4.1±2.1 (Fs20.0-31.6Wo1.8-8.3); mean Fe/Mn (at.): 67; n=11. Ca-rich pyroxene Fs17.9±0.8Wo39.4±1.4 (Fs17.3-18.4Wo38.4-40.3) mean Fe/Mn (at.): 48; n=2. Plagioclase An96.2±0.8Or0.1±0.1 (An95.4-98.0Or0.0-0.3); n=11.

Classification: Lunar (feldspathic breccia), based on texture and mineral chemistry

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Bechar
Place of purchase:Algeria
Date:P 2022
Latitude:30.894°N
Longitude:3.395°W
Mass (g):7208
Pieces:Hundreds
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:low
Fayalite (mol%):28.3±6.4
Ferrosilite (mol%):26.4±4.0; 17.9±0.8
Wollastonite (mol%):4.1±2.1; 39.4±1.4
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Mohamed Ali Loud, Miguel Angel Contreras Gomez, Viktor Plamenov Ivanov
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Andreas Möller         
Domjan Svilkovic   
Eric Escrich      
Sans   
Woreczko Jan & Wadi            
Public domain photographs:
Knut Metzler   
Geography:

Algeria
Coordinates:
     Recommended::   (30° 53' 38"N, 3° 23' 42"W)

Statistics:
     This is 1 of 35 approved meteorites from Bechar, Algeria (plus 1 unapproved name)
     This is 1 of 1362 approved meteorites from Algeria (plus 31 unapproved names) (plus 4 impact craters)
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