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Tanezrouft 082
Basic information Name: Tanezrouft 082
     This is an OFFICIAL meteorite name.
Abbreviation: Tnz 082
Observed fall: No
Year found: 2003
Country: Algeria
Mass:help 1012 g
Classification
  history:
Meteoritical Bulletin:  MB 89  (2005)  CM2
MetBase:  v. 7.1  (2006)  CM2
Recommended:  CM2    [explanation]

This is 1 of 533 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Writeuphelp
Writeup from MB 89:

Tanezrouft 082

Algeria, West Tanezrouft

Found 20 December 2003

Carbonaceous chondrite (CM2)

A single, completely crusted stone, weighing 1012 g, was found. Crust has polygonal cracks (terrestrial alteration), interior is black and slightly friable. Classification and mineralogy (M. Bourot-Denise, MNHNP): small, typically <100 m with few in the 300-800 m size-range, rounded chondrules, abundant angular debris and a few CAIs are set in a very dark matrix. Matrix contains troilite, pentlandite and clusters of framboidal magnetite. Olivine, Fa0.44-64.4, mean Fa14.5±17.0; orthopyroxene, Fs0.92-14.9, mean Fs2.5. Olivines are zoned in FeO-rich chondrules, they contain up to 0.54 wt% CaO in FeO-poor chondrules. Weathering grade is W2/3 (metal is oxidized, sulfide almost intact). Specimens: type specimen 30.2 g, and one polished mount MNHNP; main mass with Annick Goueslain and Jean Luc Parodi.

Data from:
  MB89
  Table 1
  Line 70:
Date:20 Dec 2003
Latitude:24°49.036'N
Longitude:0°26.056'W
Mass (g):1012
Pieces:1
Class:CM2
Weathering grade:W2/3
Fayalite (mol%):0.4-64.4
Ferrosilite (mol%):0.9-14.9
Classifier:M. Bourot-Denise, MNHNP
Type spec mass (g):30.2
Main mass:A. Goueslain and J. L. Parodi
Comments:See separate entry
Institutions
   and collections
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
AJL Meteorites      
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Allmeteorite.com   
Collection Vincent Jacques      
Geography:

Algeria
Coordinates:
     Recommended::   (24° 49' 2"N, 0° 26' 3"W)

Statistics:
     This is 1 of 142 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
     This is 1 of 979 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)
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