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Aridal 013
Basic information Name: Aridal 013
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2012
Country: Western Sahara
Mass:help 1029 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  H5
Recommended:  H5    [explanation]

This is 1 of 11372 approved meteorites (plus 22 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 9 Nov 2015
Writeuphelp
Writeup from MB 104:

Aridal 013        25°38.445’N, 13°49.585’W

Rio de Oro, Western Sahara

Find: 2012 Feb 16

Classification: Ordinary chondrite (H5)

History: Discovered by R. Bartoschewitz and T. Füllengraben during a natural history expedition close to the astronomical point of Ammat el Quebch in the Boujdour area on 2012 Feb 16.

Physical characteristics: One brown stone and seven smaller fragments totaling 1029 g; saw-cut shows chondrules set in fine-grained brown groundmass. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.92.

Petrography: Microprobe examination of a polished thin section shows qwll-defined chondrules (porphyritic, barred, radial, granular) up to 1.5 mm (av. 0.5 mm), chondrule and mineral fragments in recrystallized, brecciated groundmass with highly oxidized metal.

Geochemistry: (R. Bartoschewitz, P. Appel and B. Mader, Kiel) Olivine: Fa 18.8-19.5; av. Fa19.0±0.18 (n=17); pyroxene Fs16.9-17.4Wo1.3-1.5; av. Fs16.8±0.22Wo1.4±0.07 (n=6); kamacite Ni = 6.9-7.0, Co = 0.6 wt.%.

Classification: Ordinary Chondrite (H5) of shock stage S3 and weathering grade W3.

Specimens: 22.9 g on deposit at FSAC

Data from:
  MB104
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Date:2012 Feb 16
Latitude:25°38.445'N
Longitude:13°49.585'W
Mass (g):1029
Pieces:8
Class:H5
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):19.0±0.18 (n=17)
Ferrosilite (mol%):16.8±0.22 (n=6)
Wollastonite (mol%):1.4±0.07
Magnetic suscept.:4.92
Classifier:R. Bartoschewitz; H. Chennaoui Aoudjehane, FSAC
Type spec mass (g):22.9
Type spec location:FSAC
Main mass:R. Bartoschewitz
Finder:R. Bartoschewitz, Th. Füllengraben
Comments:Working name Ra02.; submitted by H. Chennaoui Aoudjehane
Institutions
   and collections		 Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
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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Geography:

Western Sahara
Coordinates:
     Recommended::   (25° 38' 27"N, 13° 49' 35"W)

Statistics:
     This is 1 of 50 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 272 approved meteorites from Western Sahara (plus 20 unapproved names)
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