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Mdaouer
Basic information Name: Mdaouer
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2014
Country: Morocco
Mass:help 61 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  CO3.0
Recommended:  CO3.0    [explanation]

This is 1 of 21 approved meteorites classified as CO3.0.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 28 Jun 2016
Writeuphelp
Writeup from MB 105:

Mdaouer        29°54.56’N, 6°55.31’W

Guelmime-Es-Semara, Morocco

Purchased: 2014 May 4

Classification: Carbonaceous chondrite (CO3.0)

History: Found and purchased from the finder in the Foum Zguid region of Morocco, May 4, 2014.

Physical characteristics: Many dark fragments, some with dull fusion crust.

Petrography: Chondrules and chondrule fragments in an abundant fine-grained foliated Fe-rich matrix. Abundances (by point counting, N=236): matrix 62 vol%, chondrules and fragments 38 vol%. Average chondrule apparent size 130±90 μm (N=35). Sulfide/magnetite and sulfide/metal assemblages are found in the matrix and chondrules as 100 μm blebs and as abundant μm-sized grains in the matrix.

Geochemistry: Olivine Fa17.3±19.2 (Fa0.4-61.8, PMD=112%, N=33). Cr2O3 in ferroan olivine is 0.40±0.15 wt% (N=28). Orthopyroxene Fs3.1±2.3Wo2.0±1.2 (N=10). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.32.

Classification: CO3.0, sub-type from Cr2O3 content of ferroan olivine and olivine Fa range. Minor weathering.

Specimens: 15.3 g at CEREGE. Main mass with P. Thomas.

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:Guelmime-Es-Semara
Place of purchase:Foum Zguid, Morocco
Date:P 2014 May 4
Latitude:29°54.56'N
Longitude:6°55.31'W
Mass (g):61
Pieces:several
Class:CO3.0
Weathering grade:minor
Fayalite (mol%):17.3±19.2 (N=28)
Ferrosilite (mol%):3.1±2.3 (N=10)
Wollastonite (mol%):2.0±1.2
Magnetic suscept.:4.32
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):15.3
Type spec location:CEREGE
Main mass:P. Thomas
Comments:Submitted by J. Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:
     Recommended::   (29° 54' 34"N, 6° 55' 19"W)

Statistics:
     This is the only approved meteorite from Guelmime-Es-Semara, Morocco
     This is 1 of 1417 approved meteorites from Morocco (plus 15 unapproved names) (plus 1 impact crater)
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Synonymshelp: Mdaouer 001 (First meteorite in new DCA)

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