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Amhirich
Basic information Name: Amhirich
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2013
Country: Morocco
Mass:help 145.9 g
Classification
  history:
Recommended:  Howardite    [explanation]

This is 1 of 372 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 3 Aug 2019
Writeuphelp
Writeup from MB 108:

Amhirich        28.9828°N, 10.0779°W

Guelmim-Smara, Morocco

Find: 2013 Mar 12

Classification: HED achondrite (Howardite)

History: Ali Salm, a taxi driver in Guelmim, and amateur meteorite hunter, went hunting for meteorites close to the city of Guelmim on March 12, 2013. Arriving south of a hill about 100 m west of souk Amhirich (Amhirich market) he found a broken stone looking like a meteorite. He brought it back to Habib Naji, a meteorite dealer in Guelmim, in order to have it authenticated. Habib N. took some pictures and collected the information about the find. He sent a reference sample to Albert Jambon in Paris.

Physical characteristics: One fragile, broken stone, covered with remnants of a dark-brown fusion crust, orange colored where the crust is missing. Light-gray breccia with lithic (basaltic) and crystal clasts up to several mm. A few pyroxene crystals are exsolved.

Petrography: Polymict breccia with mm-sized clasts of low- and high-Ca pyroxene (a few of them exsolved). Plagioclase, minor olivine, and silica are also present. A few impact-melted basaltic clasts with tiny metal inclusions occur as well. The impact melt is partially crystallized. Dominant pyroxene (70 vol%), plagioclase (23 vol%), plus chromite. Diogenitic fraction estimated at about 30 vol%.

Geochemistry: Dominant pyroxenes: Fs37Wo2 (FeO/MnO =33) and Fs49Wo25(FeO/MnO= 46). Eucritic olivine Fa46 (FeO/MnO= 70). Variable compositions of plagioclase from diogenitic (An80) to eucritic (An95). Silica. Typical diogenitic chromite (Cr2O3= 60%).

Classification: Howardite

Specimens: Main mass with Habib Naji

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Guelmim-Smara
Date:2013 Mar 12
Latitude:28.9828°N
Longitude:10.0779°W
Mass (g):145.9
Pieces:1
Class:Howardite
Weathering grade:moderate
Fayalite (mol%):48
Ferrosilite (mol%):35-50
Wollastonite (mol%):1-3
Magnetic suscept.:3.31
Classifier:Jambon, Boudouma, Badia, UPVI
Type spec mass (g):21.9
Type spec location:UPVI
Main mass:Habib Naji
Finder:Ali Salm
Comments:Work name A028; submitted by A. Jambon
Institutions
   and collections
UPVI: Université Pierre et Marie Curie (Paris VI),Case 110, 4 Place Jussieu, 75005 Paris, France (institutional address; updated 5 Oct 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
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Geography:

Morocco
Coordinates:
     Recommended::   (28° 58' 58"N, 10° 4' 40"W)

Statistics:
     This is the only approved meteorite from Guelmim-Smara, Morocco
     This is 1 of 1386 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)
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