Meteoritical Bulletin: Entry for Dayr al Aswad 002

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Dayr al Aswad 002

Basic information

Name: Dayr al Aswad 002
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Egypt
Mass: 24 kg

Classification
history:

Recommended:

L6 [explanation]

This is 1 of 12281 approved meteorites (plus 8 unapproved names) classified as L6. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 29 Jan 2022

Writeup

Writeup from MB 111:

Dayr al Aswad 002 30°43’36.23’’N, 28°05’25.59’’E

Marsa Matruh, Egypt

Find: 2021

Classification: Ordinary chondrite (L6)

History: The meteorite was found by Mr. Amr Khaled in 2020 and 2021 during several field trips to the northwestern Egyptian desert.

Physical characteristics: Many dark brownish fragments mostly devoid of fusion crust.

Petrography: Chondritic meteorite dominated by recrystallized matrix with few poorly defined chondrules. The plagioclase grain size is about 70 µm. Contains shock melt veins and pockets.

Data from:
  MB111
  Table 0
  Line 0:

State/Prov/County:	Marsa Matruh
Date:	2021
Latitude:	30°43'36.23''N
Longitude:	28°05'25.59''E
Mass (g):	24000
Pieces:	many
Class:	L6
Shock stage:	S2
Weathering grade:	W3
Fayalite (mol%):	23.7±0.2 (n=5)
Ferrosilite (mol%):	20.3±0.2 (n=5)
Wollastonite (mol%):	1.5±0.2 (n=5)
Classifier:	A. Greshake, MNB
Type spec mass (g):	20
Type spec location:	MNB
Main mass:	Amr Khaled
Finder:	Amr Khaled
Comments:	L6; submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 111, in preparation (2022)

Find references in NASA ADS:
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Geography:

Egypt

Coordinates:
Recommended::	(30° 43' 36"N, 28° 5' 26"E)

Statistics:
This is 1 of 13 approved meteorites from Marsa Matruh, Egypt
This is 1 of 127 approved meteorites from Egypt (plus 12 unapproved names) (plus 1 impact crater)

Proximity search:

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