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Aridal 010
Basic information Name: Aridal 010
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2013
Country: Western Sahara
Mass:help 333 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Brachinite
Recommended:  Brachinite    [explanation]

This is 1 of 48 approved meteorites classified as Brachinite.   [show all]
Search for other: Brachinites, Primitive achondrites
Comments: Approved 1 Apr 2015
Writeuphelp
Writeup from MB 104:

Aridal 010        25°46.6’N, 14°06.84’W

Western Sahara

Find: 2013 Apr 24

Classification: Primitive achondrite (Brachinite)

History: Found by Svend Buhl and Tomas Fuellengraben on April 24, 2013

Physical characteristics: A single brownish, oxidized stone.

Petrography: Optical microscope examination of a polished section reveals an equilibrated texture with triple junctions. Main mineral is olivine (grain size 400 μm). Accessory plagioclase (grain size 500 μm) and pyroxene (grain size 150-400 μm). Presence of Ca-phosphate and chromite.

Geochemistry: Olivine Fa=28.6±0.7 (n=14), FeO/MnO=50.0±1.8; Augite Fs=10.6±0.2 (n=3) Wo=43.7±0.2 (n=3), FeO/MnO=28.0±2.1, Al2O3=0.6 wt%; Plagioclase Ab82.2 O1.4 An16.34. Oxygen isotopic composition (J. Gattacceca, C. Sonzogni, CEREGE) δ17O=3.10 per mil, δ18O=6.17 per mil, Δ17O=-0.11 per mil (analysis of 1.5 mg of hand-picked olivine grains after acid washing of a 200 mg powdered sample, TFL slope=0.52).

Classification: Based on petrography, geochemistry and oxygen isotopic composition this is a primitive achondrite (brachinite).

Specimens: 26 g at FSAC, 14 g at CEREGE. Main mass with Svend Buhl.

Data from:
  MB104
  Table 0
  Line 0:
Origin or pseudonym:granular sandy soil
Date:2013 Apr 24
Latitude:25°46.6'N
Longitude:14°06.84'W
Mass (g):333.4
Pieces:1
Class:Brachinite
Weathering grade:high
Fayalite (mol%):28.1±0.7 (n=14)
Ferrosilite (mol%):10.6±0.2 (n=3)
Wollastonite (mol%):43.7±0.2 (n=3)
Magnetic suscept.:4.62
Classifier:M. Aboulahris, J. Gattacceca, CEREGE
Type spec mass (g):26
Type spec location:FSAC
Main mass:Svend Buhl
Finder:Svend Buhl, Thomas Fuellengraben
Comments:Submitted by J. Gattacceca
Plots: O isotopes:  
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
FSAC: Universite Hassan II Casablanca, Faculte des Sciences Ain Chock, Departement de Géologie, BP 5366 Maârif, Casablanca, Morocco (institutional address; updated 9 Jan 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Svend Buhl      
Geography:

Western Sahara
Coordinates:
     Recommended::   (25° 46' 36"N, 14° 6' 50"W)

Statistics:
     This is 1 of 204 approved meteorites from Western Sahara (plus 20 unapproved names)
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