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Larkman Nunatak 06626
Basic information Name: Larkman Nunatak 06626
     This is an OFFICIAL meteorite name.
Abbreviation: LAR 06626
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 22.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 32(2)  (2009)  EL4
Meteoritical Bulletin:  MB 98  (2010)  EL4
Recommended:  EL4    [explanation]

This is 1 of 17 approved meteorites classified as EL4.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), and Enstatite-rich meteorites
Comments: Approved 4 Sep 2009
Writeuphelp
Writeup from AMN 32(2):
Sample Number LAR 06626
Pairing LAR 06626; LAR 06659
Newsletter 32,2
Location Larkman Nunatak
Field Number 19308
Dimensions 2.5 x 2.5 x 2.0
Weight 22.42
Original Classification EL4 Chondrite
Macroscopic Description - Kathleen McBride
The exterior of 626 has thin black patches of fusion crust; 659 has no fusion crust. The interiors are a dense chocolate brown to black matrix with high metal and some weathered inclusions.
Thin Section (,2) Description - Cari Corrigan, Tim McCoy and Linda Welzenbach
The sections show an aggregate of chondrules (up to 1.5 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Chondrules contain moderate to small abundances of olivine. Weathering is modest, with staining of some enstatite grains and minor alteration of metal and sulfides. Pyroxene is Fs0-2; no olivine grains were analyzed. Metal contains 0.5-0.6 wt% Si. The meteorites are type 4 enstatite chondrites. The Si concentration in metal would suggest classification as EL4. Pairing is tentative.
Antarctic Meteorite Images for Sample LAR 06626
LAR 06626 Meteorite Thin Section Photo with 2.5x magnification in Plane-Polarized Light  LAR 06626 Meteorite Thin Section Photo with 2.5x magnification in Cross-Polarized Light  LAR 06626 Meteorite Thin Section Photo with 5x magnification in Plane-Polarized Light  LAR 06626 Meteorite Thin Section Photo with 5x magnification in Cross-Polarized Light 
Data from:
  MB98
  Table 2
  Line 167:
Mass (g):22.4
Class:EL4
Weathering grade:C
Fayalite (mol%):
Ferrosilite (mol%): 0-2
Classifier:SI
Type spec location:JSC, SI
Main mass:JSC
Comments:Fracturing A/B
Institutions
   and collections
JSC: Mailcode KT, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 3 Sep 2013)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 32(2) (2009), JSC, Houston
Published in Meteoritical Bulletin, no. 98, MAPS 45, 1530-1551 (2010)
Find references in NASA ADS:
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Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 38940 approved meteorites from Antarctica (plus 5051 unapproved names)

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