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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:
Recommended:  CM2    [explanation]

This is 1 of 615 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 Meteoritical Bulletin, no. 111, in preparation (2022)
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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 27 approved meteorites from Bechar, Algeria (plus 1 unapproved name)
     This is 1 of 1236 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)
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