Meteoritical Bulletin: Entry for Daoura 003

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Daoura 003

Basic information

Name: Daoura 003
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2021
Country: Algeria
Mass: 101 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	CM2
Recommended:			CM2 [explanation]

This is 1 of 636 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 31 Aug 2021

Writeup

Writeup from MB 110:

Daoura 003 29°43’14.1"N, 4°25’31.0"W

Bechar, Algeria

Purchased: 2021

Classification: Carbonaceous chondrite (CM2)

History: Found in Algeria. Bought by Jean Redelsperger from a Moroccan dealer in 2021.

Physical characteristics: Several fully crusted stones.

Petrography: (J. Gattacceca, CEREGE) Chondrite with well-delineated chondrules, with average apparent diameter 310±190 μm (n=41) set in an abundant fine-grained iron-rich matrix (71 vol% by point counting, n=254). Opaque minerals are sulfides (to 50 μm), magnetite, and FeNi metal as μm-sized grains enclosed in silicates. Phyllosilicates are present.

Geochemistry: Olivine Fa range Fa_1.0-33.6.

Classification: Carbonaceous chondrite (CM2).

Specimens: 22 g type specimen at CEREGE. Main mass with Jean Redelsperger

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Bechar
Date:	P 2021
Latitude:	29°43'14.1"N
Longitude:	4°25'31.0"W
Mass (g):	101
Pieces:	many
Class:	CM2
Weathering grade:	low
Fayalite (mol%):	8.5±12.6 (n=5)
Ferrosilite (mol%):	1.6 (n=1)
Wollastonite (mol%):	2.8
Magnetic suscept.:	4.18
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	22
Type spec location:	CEREGE
Main mass:	Jean Redelsperger
Finder:	anonymous
Comments:	work name JR097; submitted by Jérôme Gattacceca

Institutions
and collections

CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Algeria

Coordinates:
Recommended::	(29° 43' 14"N, 4° 25' 31"W)

Statistics:
This is 1 of 35 approved meteorites from Bechar, Algeria (plus 1 unapproved name)
This is 1 of 1358 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)

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Revision
history:

This lists important revisions made to data for this record.

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