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Basic information Name: Toufassour
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2007
Country: Morocco
Mass:help 73.3 kg
Meteoritical Bulletin:  MB 94  (2008)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 279 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 17 Oct 2008
Writeup from MB 94:

Toufassour                 29°39.135 N, 07°44.958 W

Toufassour, Tata, Morocco

Find: 16 November 2007


History: A small impact structure about 3 m in diameter was found in the vicinity of the village of Toufassour (Tata, Morocco). A number of stones have been collected since 2003 by nomads and sold to dealers in Erfoud. In particular two stones totaling 3 kg and a number of fragments were sold by one nomad, but the most significant mass (an ~70 kg stone) was found by a woman hunting for meteorites. More recently many small stones were collected by Moroccan scientists (IZU. Agadir) around the impact structure: Three pieces of 61.0, 15.5 and 13.1 grams and fragments ranging 1 to 5 grams, totaling about 320 grams. Total mass exceeds ~73.3 kg.

Physical characteristics: The fusion crust is absent and the surface appears dark brown. Larger nodules of metal protrude here and there, and larger inclusions of silicates are seen, as greenish spots. Many of the smaller specimens were rich in metal, the phase, which best resisted weathering.

Petrography: (A. Ibhi and H. Nachit, IZU, and A. Jambon, O. Boudouma and D. Badia, UPVI) Mode (wt%): kamacite and (minor) sulfide, (partly oxidized) = 27, pyroxene = 56, plagioclase = 20, silica = 5, and chromite = 0.9. Rutile and schreibersite are also present.

Mineral compositions and geochemistry (EMPA): Pyroxene FeO/MnO = 27, En70Fs26Wo4 to En59Fs33Wo8. Chromite Cr/(Cr + Al) = 0.76. Plagioclase Ab7, An93. Kamacite, Ni = 6%. Merrillite contains significant amounts of MgO.

Classification: Mesosiderite. Moderately to significantly weathered, depending on the grain size.

Type specimens: 2 polished thin sections and 89.6 g at IZU, one polished thin section and 22 g at UPVI. An anonymous dealer holds 300 g.

Data from:
  Table 1
  Line 7:
State/Prov/County:Toufassour, Tate, Morocco
Mass (g):73300
Ferrosilite (mol%):26 to 33
Wollastonite (mol%):3 to 8
Classifier:A. Ibhi and H. Nachit (IZU), and A. Jambon, O. Boudouma and D. Badia (UPVI)
Type spec mass (g):89.6
Main mass:anonymous
   and collections
UPVI: Université Pierre et Marie Curie (Paris VI),Case 110, 4 Place Jussieu, 75005 Paris, France (institutional address; updated 5 Oct 2014)
IZU: Laboratory of Petrology, Mineralogy and Materials, Ibn Zohr University, Faculty of Sciences, Agadir, BP 8106, Morocco (institutional address; updated 12 Feb 2011)
References: Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Dave Johnson   
Domjan Svilkovic   
Ziyao Wang      

     Recommended::   (29° 39' 8"N, 7° 44' 57"W)

     This is 1 of 16 approved meteorites from Guelmim-Es-Semara, Morocco (plus 2 unapproved names)
     This is 1 of 2118 approved meteorites from Morocco (plus 32 unapproved names) (plus 1 impact crater)
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