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| Abadla 003 | |||||||||||||||||||||||||||||||||||||
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| 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:  75.4 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 622 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 | ||||||||||||||||||||||||||||||||||||
| Writeup |
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: |
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| Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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| Photos: |
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Geography:
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Statistics: This is 1 of 32 approved meteorites from Bechar, Algeria (plus 1 unapproved name) This is 1 of 1277 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||||||||||||
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