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Guelb Dahmani 001
Basic information Name: Guelb Dahmani 001
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2020
Country: Algeria
Mass:help 728 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  L5
Recommended:  L5    [explanation]

This is 1 of 8855 approved meteorites (plus 5 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Aug 2022
Writeuphelp
Writeup from MB 111:

Guelb Dahmani 001        26.254°N, 4.070°W

Adrar, Algeria

Find: 2020 Dec 12

Classification: Ordinary chondrite (L5)

History: Found by a team of Algerian hunters represented by David Lehman.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Sparse chondrules aoccur within a recrystallized assemblage containing kamacite (typically altered), taenite (less altered), troilite, sodic plagioclase, chlorapatite (some grains up to 150 µm) and merrillite.

Geochemistry: Olivine (Fa25.0±0.2, range Fa24.8-25.3, N = 5), low-Ca pyroxene (Fs21.1±0.1Wo1.4±0.1, range Fs21.0-21.2Wo1.2-1.5, N = 4), augite (Fs7.6±0.9Wo45.6±0.9, range Fs6.8-8.8Wo46.3-44.6, N = 3).

Classification: Ordinary chondrite (L5).

Specimens: 34.4 g including one polished thin section at UWB; remainder with Mikael Vieira.

Data from:
  MB111
  Table 0
  Line 0:
State/Prov/County:Adrar
Date:2020 Dec 12
Latitude:26.254°N
Longitude:4.070°W
Mass (g):728
Pieces:1
Class:L5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):25.0±0.2
Ferrosilite (mol%):21.1±0.1
Wollastonite (mol%):1.4±1.1
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):34.4
Type spec location:UWB
Main mass:Mikael Vieira
Comments:Work name DL 1081; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography:

Algeria
Coordinates:
     Recommended::   (26° 15' 14"N, 4° 4' 12"W)

Statistics:
     This is 1 of 199 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
     This is 1 of 1335 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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