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Acfer 234
Basic information Name: Acfer 234
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1991
Country: Algeria
Mass:help 621 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Iron
MetBase:  v. 7.1  (2006)  Iron-finest octahedrite
Meteoritical Bulletin:  MB 99  (2012)  Iron, IAB-ung
Recommended:  Iron, IAB-ung    [explanation]

This is 1 of 47 approved meteorites classified as Iron, IAB-ung.   [show all]
Search for other: IAB complex irons, Metal-rich meteorites, and Iron meteorites
Comments: Approved 26 Aug 2010
Writeuphelp
Writeup from MB 99:

Acfer 234        27°30’4"N, 4°5’55"E

Tamanghasset, Algeria

Found: 1991

Classification: Iron meteorite (IAB, ungrouped)

Petrography (F. Brandstaetter, NHMV): Kamacite bandwidth 0.082 mm; swathing kamacite around troilite up to > 200 μm. Inclusions are troilite, schreibersite and phosphates. Troilite is most abundant forming "nodules" 1 to 3 mm. No silicates were recognized. Two different (Fe, Mn, Mg, Na) phosphates are present.

Geochemistry: Co (mg/g) 4.48, Ni (mg/g) 87.3, Ga (µg/g) 21.2, Ge (µg/g) ~100, As (µg/g) 12.7, Ir (µg/g) 5.01, Au (µg/g) 1.28

Data from:
  MB99
  Table 0
  Line 0:
State/Prov/County:Tamanghasset
Date:1991
Latitude:27°30'4"N
Longitude:4°5'55"E
Mass (g):621
Pieces:1
Class:Iron, IAB-ung
Classifier:Wasson
Type spec mass (g):535
Type spec location:NHMV
Main mass:NHMV
Comments:Submitted by Wasson
Institutions
   and collections
NHMV: Naturhistorisches Museum, Burgring 7, 1010 Wien, Austria, Austria (institutional address; updated 28 Dec 2011)
Catalogs:
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References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Geography:

Algeria
Coordinates:
     Recommended::   (27° 30' 4"N, 4° 5' 55"E)

Statistics:
     This is 1 of 415 approved meteorites from Tamanghasset, Algeria (plus 3 unapproved names) (plus 2 impact craters)
     This is 1 of 713 approved meteorites from Algeria (plus 27 unapproved names) (plus 4 impact craters)
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