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Description

AMAZING ABADLA 002 METEORITE!!!
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Abadla 002
Basic information
Name:
Abadla 002
This is an OFFICIAL meteorite name.
Abbreviation:
There is no official abbreviation for this meteorite.
Observed fall:
No
Year found:
2022
Country:
Algeria
Mass:
800 g
Classification
history:
Recommended:
CM2
This is 1 of 612 approved meteorites classified as CM2.
Comments:
Approved 13 May 2022
Writeup
Writeup from MB 111:
Abadla 002
30°28’58.07"N, 01°37’15.76"W
Bechar, Algeria
Find: 2021
Classification: Carbonaceous chondrite (CM2)
History
: Many identically appearing pieces were found on December 5, 8 and 13, 2021, along an approximately 10 km traverse. Purchased from Mouha Bouyat on February 22, 2022.
Physical characteristics
: Dark fusion-crusted exterior, broken surface reveals numerous small chondrules set in a dark gray matrix that makes up over 50% of this meteorite. Small CAIs are visible.
Petrography
: (A. Ross and C. Agee,
UNM
) Chondrules and Small CAIs set in a fine-grained matrix (>50 vol%) . Most chondrules are porphyritic type I with predominantly forsteritic olivines. Matrix olivines are mostly fragmental and ferroan. Apparent mean chondrule diameter approximately 300 μm. Aluminous diopside, troilite, Fe-Ni sulfide, and low-Ni iron were detected.
Geochemistry
: (A. Ross and C. Agee,
UNM
) Type I chondrule olivine Fa
0.9±0.3
, Cr
2
O
3
=0.37±0.20 (wt%) n=4; ferroan matrix olivine Fa
38.3±6.9
, Fe/Mn=97±22, Cr
2
O
3
=0.29±0.14 (wt%) n=4; low-Ca pyroxene Fs
3.0±2.3
Wo
2.4±2.1
, n=4; matrix (20 ?m defocused microprobe beam) analytical totals of 77.6±2.4 wt% and FeO=35.5±3.4 wt%, n=7.
Classification
: Carbonaceous chondrite (CM2). The low analytical totals in the matrix indicate the presence of hydrous phases.
Specimens
: 20 g on deposit at
UNM
, Mouha Bouyat and Matthew Stream hold the main mass.
Data from:
MB111
Table 0
Line 0:
State/Prov/County:
Bechar
Date:
2021
Latitude:
30°28'58.07"N
Longitude:
01°37'15.76"W
Mass (g):
800
Pieces:
Many
Class:
CM2
Shock stage:
low
Weathering grade:
low
Fayalite (mol%):
0.9±0.3, 38.3±6.9
Ferrosilite (mol%):
3.0±2.3
Wollastonite (mol%):
2.4±2.1
Classifier:
C. Agee, UNM
Type spec mass (g):
20
Type spec location:
UNM
Main mass:
Mouha Bouyat and Matthew Stream
Comments:
Fieldname MST-12; submitted by C. Agee
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