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Larkman Nunatak 12060
Basic information Name: Larkman Nunatak 12060
     This is an OFFICIAL meteorite name.
Abbreviation: LAR 12060
Observed fall: No
Year found: 2012
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 17.9 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 36(2)  (2013)  Eucrite
Meteoritical Bulletin:  MB 102  (2013)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 429 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 30 Aug 2013
Writeuphelp
Writeup from AMN 36(2):
Sample Number LAR 12060
Newsletter 36,2
Location Larkman Nunatak
Field Number 22263
Dimensions 3.5 x 2.5 x 2.0
Weight 17.87
Original Classification Eucrite
Mineral Composition (%Fa &  %Fs)
Ferrosilite (mol%): 27-63
Weathering
A/B
Fracturing
A/B
Macroscopic Description - Kathleen McBride
Exterior has a rough, black fusion crust over 50% of its surface. The interior of this eucrite has a black and white granular texture with an occasional rust halo.
Thin Section Description (,2) - Cari Corrigan and Linda Welzenbach
This meteorite is dominated by fine-grained (~200 micron average) basaltic material which occurs as both the host and clasts within the meteorite. Occasional coarser-grained clasts, with grain sizes up to 0.5 mm, are observed. Mineral compositions include orthopyroxene (Fs63Wo2), with lamellae of augite (Fs27-29Wo41-44), and plagioclase (An75-97Or0-1). The Fe/Mn ratio of the pyroxene is ~29-32. The meteorite is a brecciated eucrite.
Antarctic Meteorite Images for Sample LAR 12060
Thin Section Photograph of Sample LAR 12060 in Plane-Polarized Light  Thin Section Photograph of Sample LAR 12060 in Reflected Light  Thin Section Photograph of Sample LAR 12060 in Cross-Polarized Light  Thin Section Photograph of Sample LAR 12060 in Plane-Polarized Light 
Thin Section Photograph of Sample LAR 12060 in Reflected Light  Thin Section Photograph of Sample LAR 12060 in Cross-Polarized Light  East View of Sample LAR 12060  South View of Sample LAR 12060 
Splits View of Sample LAR 12060  West View of Sample LAR 12060  North View of Sample LAR 12060 
Data from:
  MB102
  Table 0
  Line 0:
Date:2012
Mass (g):17.9
Pieces:1
Class:Eucrite
Weathering grade:A/B
Ferrosilite (mol%):27-63
Classifier:SI
Type spec mass (g):17.9
Type spec location:JSC
Main mass:JSC
Finder:ANSMET
Comments:Submitted by AMN
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 36(2) (2013), JSC, Houston
Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

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