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El Keurt
Basic information Name: El Keurt
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1999
Country: Algeria
Mass:help 145 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  L4
Recommended:  L4    [explanation]

This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 14 Nov 2016
Writeuphelp
Writeup from MB 105:

El Keurt        35°22.36’N, 0°4.49’E

Mascara, Algeria

Find: Nov 1999

Classification: Ordinary chondrite (L4)

History: Collected by Romano Serra along the road while travelling towards a desert area for meteorite recovery.

Physical characteristics: Single stone, partial crust. The sawn surface shows a chondritic texture.

Petrography: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi) The thin polished section displays a chondritic texture with several chondrules of various types (BO,PO, RP, PP) ranging in size from 200 to 800 μm in diameter within a fine grained silicate matrix. Opaque phases are Fe-Ni alloys and troilite.

Geochemistry: (V. Moggi Cecchi, G. Pratesi, S. Caporali, UniFi) Olivine (Fa23.0±2.5, Fe/Mn=48±3, n=10; MD=1.8 PMD=8.8); low-Ca pyroxene (Fs18.1±2.3Wo1.6±0.1; Fe/Mn=25±3, n=8; MD=1.0 PMD=8.4).

Classification: Ordinary Chondrite (L4); S2; W4

Specimens: A total of 21.0 g specimen and one thin section are on deposit at MSN-Fi; OAM holds the main mass.

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:Mascara
Date:Nov 1999
Latitude:35°22.36'N
Longitude:0°4.49'E
Mass (g):145
Pieces:1
Class:L4
Shock stage:S2
Weathering grade:W4
Fayalite (mol%):23.0±2.5 (n=10)
Ferrosilite (mol%):18.1±2.3 (n=8)
Wollastonite (mol%):1.6±0.1
Classifier:V. Moggi Cecchi, S. Caporali, G. Pratesi, MSN-FI
Type spec mass (g):21
Type spec location:MSN-FI
Main mass:OAM
Comments:Submitted by Vanni Moggi Cecchi
Institutions
   and collections		 OAM: Museo del Cielo e della Terra Vicolo Baciadonne 1 40017 San Giovanni in Persiceto ( BO) Italy Osservatorio Astronomico e Museo "Giorgio Abetti", San Giovanni Persiceto, Bologna, Italy; Website (institutional address; updated 31 Oct 2012)
MSN-FI: Museo di Storia Naturale “La Specola”, Sez. Mineralogia – Sistema Museale dell'Università degli Studi di Firenze Via Giorgio La Pira, 4 – 50121 Firenze, Italy; Website (institutional address; updated 24 Oct 2022)
UniFi: Università degli Studi di Firenze, P.zza S. Marco, 4 - 50121 Firenze, Italy (institutional address; updated 14 Sep 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:

Algeria
Coordinates:
     Recommended::   (35° 22' 22"N, 0° 4' 29"E)

Statistics:
     This is the only approved meteorite from Mascara, Algeria
     This is 1 of 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
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