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Itqiy
Basic information Name: Itqiy
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: Yes
Year fell: 1990
Country: Western Sahara
Mass:help 4.72 kg
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Stone-ung
Meteoritical Bulletin:  MB 85  (2001)  Enstatite meteorite-ung
MetBase:  v. 7.1  (2006)  EH7-an
Recommended:  EH7-an    [explanation]

This is the only approved meteorite classified as EH7-an.
Search for other: Enstatite chondrites (type 4-7), Enstatite-rich meteorites, EH chondrites, and Enstatite chondrites
Writeuphelp
Writeup from MB 85:

Itqiy

Saguia el Hamra, Western Sahara

Fell ~1990

Ungrouped enstatite-rich meteorite

In the year 1990 (±1 year), after a detonation and the appearance of light, one stone of 410 g was recovered near Itqiy by a nomad. A larger stone weighing 4310 g was recovered by Marc, Luc, and Jim Labenne while searching for meteorites in the same place in 2000 July.  The larger stone has a black fusion crust exhibiting flow lines. Classification and mineralogy (D. Hill and A. Patzer, UAz): has an equigranular texture showing numerous triple junctions; enstatite (grain size 0.5–4 mm), 78 vol%, has Fs0.2Wo3.0; metal (grain size 0.2–2 mm), 22 vol%, is kamacite with Fe = 90.4 wt%, Ni = 5.77 wt%, Si = 3.13 wt%, in the EH compositional range; troilite is nearly absent; Mg-Mn-Fe sulfides with compositions intermediate between typical E-chondrite niningerite and alabandite, plus unusual Fe-Cr sulfides are heterogeneously distributed in intergranular regions (0.2–1 mm in diameter); bulk Mg/Si = 0.82 mol/mol, in the lower EL range (slightly higher than EH); bulk Fe/Si = 1.13 mol/mol, in the high EH range; no relic chondrules are observed; shock stage, S5, weathering grade W1–2. For further details see Patzer et al. (2001). Specimens: main mass with Labenne; type specimen, 22.17 g, includes two thin sections, UAz.

Institutions
   and collections
UAz: Lunar and Planetary Laboratory, University of Arizona, 1629 E. University Blvd., Tucson, AZ 85721, United States (institutional address; updated 14 Jan 2012)
Labenne: 23, rue de Esperance, 75013 Paris, France; Website (private address; updated 29 Aug 2012)
Catalogs:
Search for this meteorite in the Natural History Museum collection (U.K.):   
    Require NHM photo
References: Published in Meteoritical Bulletin, no. 85, MAPS 36, A293-A322 (2001)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Labenne meteorites   
Peter Marmet   
Shinishi Kato   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
akira1988   
Allmeteorite.com   
Corey Kuo.      
Fred CHAPRON   
L Beer   
Piotr gural100   
Woreczko Jan & Wadi      
Geography:

Western Sahara
Coordinates:
     Catalogue of Meteorites:   (26° 35'N, 12° 57'W)
     Recommended::   (26° 35' 27"N, 12° 57' 8"W)
Note: the NHM and MetBase coordinates are 0.9 km apart

Statistics:
     This is 1 of 62 approved meteorites from Saguia el Hamra, Western Sahara
     This is 1 of 108 approved meteorites from Western Sahara (plus 18 unapproved names)
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