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Daoura 002
Basic information Name: Daoura 002
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No, but it is possible
Year found: 2020
Country: Algeria
Mass:help 70 kg
Classification
  history:
Recommended:  H6    [explanation]

This is 1 of 6438 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 16 Jan 2021
Writeuphelp
Writeup from MB 110:

Daoura 002        29º41.7171N, 3º03.3523W

Bechar, Algeria

Find, possible fall: 23 Feb 2020

Classification: Ordinary chondrite (H6)

History: The samples were reported to have fallen outside the Algerian city of Tabelbala on February 23, 2020, after sunset. Nomads in the desert saw a purple and yellow fireball heading east to west, ~40 km from the neighboring villages of Beni Abbas and Tabelbala. Hunters were able to collect ~70 kg of the sample from high dunes as the black fusion crust made it easy to identify on the horizon. Didi Baidari purchased samples from a prospector.

Physical characteristics: Samples are coated in a fresh black, flow-lined fusion crust which is up to 1mm thick in some parts of the sample. The interior is light grey and crystalline.

Petrography: (Description and Classification A. Love, App) Sample shows a recrystallized chondritic texture composed of indistinct chondrules with an average diameter of 480 µm (n=27) and ~12 vol% void space. Average grain size of secondary plagioclase grains is 77 µm (n=23). Additional minerals are: high-Ca pyroxene, chromite, troilite, FeNi metals (6.26 vol%, n=6) and Cl-apatite.

Geochemistry: (A. Love, App) Olivine (Fa18.9±0.2, Fe/Mn=36.1±1.2, n=10); low-Ca Pyroxene (Fs17.3±0.3Wo1.6±0.1, Fe/Mn=22.3±0.5, n=10); plagioclase (An12.0±0.3Or4.8±0.7, n=5).

Classification: Ordinary chondrite (H6, C-S2, W0). Based on chondrule size, magnetic susceptibility, mineral compositions, textures and size of secondary plagioclase, abundance of FeNi metal this sample is an H6.

Specimens: Didi Baidari holds the 441 g. A total of 55 kg of the sample is held between two anonymous owners. The remaining material is held my nomads who found the meteorite. Two fusion crusted fragments weighing 20.96 g and a polished thin section and mount are on deposit at App.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Bechar
Origin or pseudonym:Sand Dunes
Place of purchase:Tindouf
Date:23 Feb 2020
Latitude:29º41.7171N
Longitude:3º03.3523W
Mass (g):70000
Pieces:many
Class:H6
Shock stage:C-S2
Weathering grade:W0
Fayalite (mol%):18.9±0.2
Ferrosilite (mol%):17.3±0.3
Wollastonite (mol%):1.6±0.1
Magnetic suscept.:5.48
Classifier:A. Love, App
Type spec mass (g):20.96
Type spec location:App
Main mass:Anonymous
Comments:Submitted by Anthony Love
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
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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Photos:
CreditPhotos
Public domain photographs:
Anthony Love            
Geography:

Algeria
Coordinates:
     Recommended::   (29° 41' 43"N, 3° 3' 21"W)

Statistics:
     This is 1 of 27 approved meteorites from Bechar, Algeria (plus 1 unapproved name)
     This is 1 of 1250 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)
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