Meteoritical Bulletin: Entry for Lahmada 048

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Lahmada 048

Basic information

Name: Lahmada 048
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2020
Country: Western Sahara
Mass: 59 g

Classification
history:

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

This is 1 of 660 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Approved 20 Mar 2021

Writeup

Writeup from MB 110:

Lahmada 048 27°24’20.78"N, 9°51’13.07"W

Saguia el Hamra, Western Sahara

Find: 2020 Sep 23

Classification: Ureilite

History: The meteorite was found by Brahim Elguirah. The meteorite was bought by Jean Redelsperger from Zaid Oualguirah in 2020.

Physical characteristics: A single dark brown stone

Petrography: (J. Gattacceca, CEREGE) Aggregate of blocky olivine grains (grain size 800 µm) with reduced margins. Metal, originally present along olivine rims, is almost entirely replaced by terrestrial weathering products. Contains a significant amount of carbon material, likely diamonds in view of the extreme difficulty to saw the rock.

Geochemistry: Olivine Fa_21.9±0.4, CaO 0.36±0.02 wt%, CrO3 0.65±0.02, FeO/MnO = 53.4±7.9 (n=4). Olivine rim Fa_5.1(n=1).

Classification: Ureilite

Specimens: Type specimen at CEREGE. Mais mass with Jean Redelsperger.

Data from:
  MB110
  Table 0
  Line 0:

State/Prov/County:	Saguia el Hamra
Place of purchase:	Morocco
Date:	2020 Sep 23
Latitude:	27°24'20.78"N
Longitude:	9°51'13.07"W
Mass (g):	59
Pieces:	1
Class:	Ureilite
Weathering grade:	high
Fayalite (mol%):	21.9±0.4 (n=)
Magnetic suscept.:	4.49
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	12
Type spec location:	CEREGE
Main mass:	Jean Redelsperger
Finder:	Brahim Elguirah
Comments:	work name JR088; 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:

Western Sahara

Coordinates:
Recommended::	(27° 24' 21"N, 9° 51' 13"W)

Statistics:
This is 1 of 117 approved meteorites from Saguia el Hamra, Western Sahara (plus 1 unapproved name)
This is 1 of 280 approved meteorites from Western Sahara (plus 20 unapproved names)

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Revision
history:

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