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Aridal 016
Basic information Name: Aridal 016
     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 2.21 kg
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  H4
Recommended:  H4    [explanation]

This is 1 of 5778 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 016        25°38.783’N, 13°49.962’W

Rio de Oro, Western Sahara

Find: 2012 Feb 21

Classification: Ordinary chondrite (H4)

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

Physical characteristics: 28 brown stones totaling about 2.21 kg. Some stones show brown fusion crust. Saw-cut shows chondrules set in fine-grained brown groundmass. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.35-4.63.

Petrography: Microprobe examination of a polished thin section shows well-developed chondrules (porphyritic, radial, barred) up to 1 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: Fa18.4-19.4; av. Fa19.0±0.24 (n=17); pyroxene Fs16.2-17.0Wo1.2-1.5; av. Fs16.7±0.27Wo1.3±0.12 (n=6); chromite: CRAL=84.2, FFM=85.8.

Classification: Ordinary Chondrite (H4) of shock stage S3 and weathering grade W3.

Specimens: 26.5 g on deposit at FSAC

Data from:
  MB104
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Date:2012 Feb 21
Latitude:25°38.783'N
Longitude:13°49.962'W
Mass (g):2211.6
Pieces:28
Class:H4
Shock stage:S3
Weathering grade:W4
Fayalite (mol%):19.0±0.24 (n=17)
Ferrosilite (mol%):16.7±0.27 (n=6)
Wollastonite (mol%):1.3±0.12
Magnetic suscept.:4.65
Classifier:R. Bartoschewitz; H. Chennaoui Aoudjehane, FSAC
Type spec mass (g):26.5
Type spec location:FSAC
Main mass:R. Bartoschewitz, Th. Füllengraben, S. Vassiliev, M. Jost
Finder:R. Bartoschewitz, Th. Füllengraben, S. Vassiliev, M. Jost
Comments:Working names Ra05B, H5, Ra05E, Ra05C, Ra05D, Ra05E, Ra05G, Ra05H, Ra05I, Ra05K, Ra05I, Ra06, Ra07; 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' 47"N, 13° 49' 58"W)

Statistics:
     This is 1 of 36 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 204 approved meteorites from Western Sahara (plus 20 unapproved names)
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