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Ilafegh 018
Basic information Name: Ilafegh 018
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2001
Country: Algeria
Mass:help 11.1 kg
Classification
  history:
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 308 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Approved 23 Sep 2018
Writeuphelp
Writeup from MB 107:

Ilafegh 018        21°20’31.93"N, 0°49’26.02"E

Adrar, Algeria

Find: 2001 Dec

Classification: Iron meteorite (IIIAB)

History: Compact, heavily sculpted mass with well-preserved fusion crust on large parts of the surface and only a thin layer of surface oxidation. The mass shows distinct regmaglypts and heavy ablation of edges. The iron was found by nomadic Berbers in 2001, "probed" for possible gold or silver content with negative results, and left in place, remembered only as a curiosity. Only in 2015, when the finders made contact with Moroccan meteorite dealers, was the iron was recovered from its find location and recognized as an iron Meteorite, and subsequently purchased by S. Buhl.

Physical characteristics: Single mass with regmaglypts and remnants of fusion crust on large parts of the surface. Minor surface oxidation.

Petrography: (J. Gattacceca, CEREGE): The etched section shows octahedrite texture with a 1-2 mm heat alteration zone. Only three kamacite bands are visible in the section, with average width 1.4 mm. Kamacite is polycristalline and in the epsilon form. Comb, black and net plessite are present. No accessory minerals were observed.

Geochemistry: (M. D’Orazio, DST-PI): Composition of the metal is Co=0.44, Ni=7.7 (both in wt%), Cu=184, Ga=20.3, Ge=41, As=4.9, Mo=6.5, Ru=10.8, Rh=1.85, Pd=3.10, Re=0.48, Ir=5.5, Pt=11.5, Au=0.67 (all in ppm). Ni and Co have been measured by hand-held XRF following Gemelli et al. 2015; all other elements by ICP-MS following D'Orazio and Folco (2003).

Classification: Iron, IIIAB.

Bibliography:
  • D'Orazio M. and Folco L. (2003) Chemical analysis of iron meteorites by inductively coupled plasma-mass spectrometry. Geostand. Newslett. 27, 215-225. (link)
Data from:
  MB107
  Table 0
  Line 0:
State/Prov/County:Adrar
Origin or pseudonym:Limestone pediment
Date:2001 Dec
Latitude:21°20'31.93"N
Longitude:0°49'26.02"E
Mass (g):11100
Pieces:1
Class:Iron, IIIAB
Weathering grade:minimal
Classifier:M. D'Orazio, J. Gattacceca, CEREGE
Type spec mass (g):22.18
Type spec location:CEREGE
Main mass:Frankie Yu
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)
DST-PI: Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria 53, 56126 Pisa, Italy (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Svend Buhl, Meteorite-Recon   
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
bowen yu         
Geography:

Algeria
Coordinates:
     Recommended::   (21° 20' 32"N, 0° 49' 26"E)

Statistics:
     This is 1 of 141 approved meteorites from Adrar, Algeria (plus 1 unapproved name)
     This is 1 of 941 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)
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