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Acfer 045
Basic information Name: Acfer 045
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1989
Country: Algeria
Mass:help 294 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Stone
MetBase:  v. 7.1  (2006)  Stone
Meteoritical Bulletin:  MB 106  (2018)  LL5
Recommended:  LL5    [explanation]

This is 1 of 3132 approved meteorites classified as LL5.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 20 Jan 2017
Writeuphelp
Writeup from MB 106:

Acfer 045        27.75°N, 4.7°E

Tamanghasset, Algeria

Find: 1989

Classification: Ordinary chondrite (LL5)

History: (P. Sipiera, PSF) This meteorite was part of a large number of specimens collected in 1989 from Tamanghasset, Algeria at 27.75°N 4.7°E.  The specimen was purchased from a Swiss dealer by the late James DuPont later that same year, and subsequently it was bequeathed to the PSF.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly recrystallized with sparse chondrules and stained metal.

Geochemistry: Olivine (Fa30.0-31.8, N = 3), orthopyroxene (Fs23.6-24.6Wo1.8-1.7, N = 3), clinopyroxene (Fs8.4-9.1Wo44.9-43.9, N = 2).

Classification: Ordinary chondrite (LL5).

Specimens: The entire specimen including one polished thin section is at PSF.

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Tamanghasset
Place of purchase:Switzerland
Date:1989
Latitude:27.75°N
Longitude:4.7°E
Mass (g):294
Pieces:1
Class:LL5
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):30.0-31.8
Ferrosilite (mol%):23.6-24.6
Wollastonite (mol%):1.8-1.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):294
Type spec location:PSF
Main mass:PSF
Comments:Submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
DuPont: James M. DuPont Meteorite Collection, Deposited at FMNH in 2008., United States (private address; updated 1 Jun 2012)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
Find references in NASA ADS:
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Geography:

Algeria
Coordinates:
     Recommended::   (27° 45'N, 4° 42'E)

Statistics:
     This is 1 of 416 approved meteorites from Tamanghasset, Algeria (plus 2 unapproved names) (plus 2 impact craters)
     This is 1 of 979 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)
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Synonymshelp: Kidal (Mali) (From MetBase)

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