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Aridal 015
Basic information Name: Aridal 015
     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 1025 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  H4
Recommended:  H4    [explanation]

This is 1 of 5766 approved meteorites (plus 2 unapproved names) classified as H4.   [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 015        25°38.718’N, 13°49.67’W

Rio de Oro, Western Sahara

Find: 2012 Feb 21

Classification: Ordinary chondrite (H4)

History: Discovered by A. Koppelt, R. Bartoschewitz, T. Füllengraben and S. Buhl during a natural history expedition close to the astronomical point of Ammat el Quebch in the Boujdour area on 2012 Feb 21.

Physical characteristics: 12 brown stones totaling 1025 g; saw-cut shows chondrules set in fine-grained brown groundmass. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.60.

Petrography: Microprobe examination of a polished thin section shows well-developed chondrules (porphyritic, barred, radial, granular) up to 1.0 mm (av. 0.5 mm), chondrule and mineral fragments in recrystallized, brecciated groundmass with highly oxidized metal.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine: Fa18.9-22.2; av. Fa19.4±0.80 (n=16); pyroxene Fs16.4-17.5Wo1.3-1.5; av. Fs16.9±0.37Wo1.5±0.08 (n=6); kamacite Ni=6.9-7.0, Co=0.6 (all in wt.%).

Classification: Ordinary Chondrite (H4) of shock stage S3 and weathering grade W4.

Specimens: 36.8 g on deposit at FSAC

Data from:
  MB104
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Date:2012 Feb 21
Latitude:25°38.718'N
Longitude:13°49.67'W
Mass (g):1025
Pieces:12
Class:H4
Shock stage:S2
Weathering grade:W4
Fayalite (mol%):19.4±0.80 (n=16)
Ferrosilite (mol%):16.9±0.37 (n=6)
Wollastonite (mol%):1.5±0.08
Magnetic suscept.:4.60
Classifier:R. Bartoschewitz; H. Chennaoui Aoudjehane, FSAC
Type spec mass (g):36.8
Type spec location:FSAC
Main mass:A. Koppelt
Finder:A. Koppelt, S. Buhl, R. Bartoschewitz, Th. Füllengraben
Comments:Working name AK1 and Ra08; 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)
Bart: Bartoschewitz Meteorite Laboratory, Lehmweg 53, D-38518 Gifhorn, Germany; Website (private address; updated 4 Aug 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' 43"N, 13° 49' 40"W)

Statistics:
     This is 1 of 36 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 202 approved meteorites from Western Sahara (plus 20 unapproved names)
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