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Tindouf 002
Basic information Name: Tindouf 002
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2014
Country: Algeria
Mass:help 78.2 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Martian (shergottite)
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 189 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 31 Mar 2016
Writeuphelp
Writeup from MB 105:

Tindouf 002        27.312°N, 7.561°W

Tindouf, Algeria

Find: 2014 May 16

Classification: Martian meteorite (Shergottite)

History: Six similar dark stones were found together by Mr. Alla on May 16, 2014, at a location 80 km SE of Tindouf, Algeria (27.312°N, 7.561°W) and subsequently acquired by Moulay El Bechir Didi. Four of the stones were subsequently purchased in June 2015 by Fabien Kuntz.

Physical characteristics: The stones lack fusion crust and are dark green in color with visible black, vesicular patches.

Petrography: (A. Irving and S. Kuehner, UWS) Intersertal texture with some preferred orientation of elongate grains. Major minerals are zoned clinopyroxene and intermediate plagioclase (converted to maskelynite) with accessory ulvöspinel, ilmenite, merrillite, fayalite, pyrrhotite and silica polymorph. Dark glassy, vesicular shock pockets are present.

Geochemistry: High-Ca pyroxene (subcalcic augite, Fs22.8-61.8Wo31.1-20.2, FeO/MnO = 28-38, N = 6), low-Ca pyroxene (pigeonite, Fs43.0-62.5Wo14.6-15.1, FeO/MnO = 30-39, N = 3), maskelynite (An46.3-53.1Or3.7-1.2, N = 3). Hf and Nd isotopes (M. Righter and T. Lapen, UHou): analysis of a subsample gave ε176Hf = -19.7 and ε143Nd = -10.0, indicating that this specimen has affinities to enriched shergottites (like Shergotty).

Classification: Martian (mafic shergottite, enriched).

Specimens: 15.84 g including one polished endcut at UWB; remaining material with Kuntz and an anonymous collector.

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:Tindouf
Date:2014 May 16
Latitude:27.312°N
Longitude:7.561°W
Mass (g):78.2
Pieces:6
Class:Martian (shergottite)
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):43.0-62.5; 22.8-61.8
Wollastonite (mol%):14.6-15.1; 31.1-20.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):15.84
Type spec location:UWB
Main mass:F. Kuntz
Comments:A01; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UHou: University of Houston, United States (institutional address; updated 27 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:

Algeria
Coordinates:
     Recommended::   (27° 18' 43"N, 7° 33' 40"W)

Statistics:
     This is 1 of 32 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 961 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)
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