header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 6 May 2021
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
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 6177 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 Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Public domain photographs:
Anthony Love            
Geography:

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

Statistics:
     This is 1 of 21 approved meteorites from Bechar, Algeria
     This is 1 of 1099 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page