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Abadla 003
Basic information Name: Abadla 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:help 75.4 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  CM2
Recommended:  CM2    [explanation]

This is 1 of 635 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 1 Oct 2022
Writeuphelp
Writeup from MB 111:

Abadla 003        30°28’58.07" N, 01°37’15.76"W

Bechar, Algeria

Purchased: 2022 April 3

Classification: Carbonaceous chondrite (CM2)

History: Found in the Abadla DCA, Algeria, on December 22, 2021

Petrography: (K. Metzler, IfP) Chondrules, chondrule fragments, and CAIs are embedded in a fine-grained black matrix (about 50 vol% matrix). The vast majority of chondrules belong to the chemical type I. Chondrule sizes are mostly between 50 and 300 µm; a few chondrules with sizes up to 800 µm are present. Many chondrules are mantled by fine-grained dust. Accessories are troilite, pentlandite, and calcite. The presence of hydrous phyllosilicates is indicated by the low totals of bulk matrix analysis

Geochemistry: Mineral compositions and geochemistry: Random measurements of olivine grains revealed Fa8.9±12.9 (Fa0.5-35.0); n=16. Random measurements of low-Ca pyroxene grains revealed Fs1.9±1.6 Wo2.0±1.2 (Fs0.7-4.9 Wo0.7-3.6; n=10)

Classification: CM chondrite based on CAI occurrence, small chondrule size, chondrule-matrix ratio, and mineral chemistry. Petrologic type 2 based on the large chemical variations of olivine and pyroxene and low totals of matrix analysis

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Bechar
Place of purchase:Morocco
Date:P 2022 April 3
Latitude:30°28'58.07" N
Longitude:01°37'15.76"W
Mass (g):75.4
Pieces:Many
Class:CM2
Shock stage:C-S1
Weathering grade:Moderate
Fayalite (mol%):8.9±12.9
Ferrosilite (mol%):1.9±1.6
Wollastonite (mol%):2.0±1.2
Classifier:K. Metzler, IfP
Type spec mass (g):15.2
Type spec location:IfP
Main mass:Meteorite Museum & Shop, Stephan Decker, Oberwesel, Germany
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
Public domain photographs:
Knut Metzler         
Geography:

Algeria
Coordinates:
     Recommended::   (30° 28' 58"N, 1° 37' 16"W)

Statistics:
     This is 1 of 34 approved meteorites from Bechar, Algeria (plus 1 unapproved name)
     This is 1 of 1344 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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