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| Tanezrouft 082 | |||||||||||||||||||||||||||
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| Basic information | Name: Tanezrouft 082 This is an OFFICIAL meteorite name. Abbreviation: Tnz 082 Observed fall: No Year found: 2003 Country: Algeria Mass:  1012 g | ||||||||||||||||||||||||||
| Classification history: |
This is 1 of 641 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||
| Writeup |
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: |
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| Institutions and collections |
MNHNP: Museum National d'Histoire Naturelle, IMPMC-CP52, 57 rue Cuvier, 75005 Paris, France, France; Website (institutional address) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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Geography:
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Statistics: This is 1 of 210 approved meteorites from Adrar, Algeria (plus 1 unapproved name) This is 1 of 1400 approved meteorites from Algeria (plus 33 unapproved names) (plus 4 impact craters) | ||||||||||||||||||||||||||
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