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Larkman Nunatak 12100
Basic information Name: Larkman Nunatak 12100
     This is an OFFICIAL meteorite name.
Abbreviation: LAR 12100
Observed fall: No
Year found: 2012
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 24.6 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 36(2)  (2013)  CV3
Meteoritical Bulletin:  MB 102  (2013)  CV3
Recommended:  CV3    [explanation]

This is 1 of 531 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 30 Aug 2013
Writeuphelp
Writeup from AMN 36(2):
Sample Number LAR 12100
Newsletter 36,2
Location Larkman Nunatak
Field Number 22603
Dimensions 3.8 x2.9 x 1.5
Weight 24.57
Original Classification CV3 chondrite
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 1-25
Weathering
B/C
Fracturing
A/B
Macroscopic Description - Cecilia Satterwhite
Exterior has a black fusion crust with brown oxidation. Exposed interior reveals inclusions/chondrules with some rust and oxidation. Grayish brown interior is weathered with some rusty oxidation. Clast and inclusions are gray, white and weathered.
Thin Section Description (,2) - Cari Corrigan and Linda Welzenbach
The section exhibits large chondrules (up to 3 mm) and CAIs in a dark matrix. Olivines range from Fa1-25. The meteorite is an unequilibrated CV3 chondrite.
Antarctic Meteorite Images for Sample LAR 12100
Thin Section Photograph of Sample LAR 12100 in Plane-Polarized Light  Thin Section Photograph of Sample LAR 12100 in Reflected Light  Thin Section Photograph of Sample LAR 12100 in Cross-Polarized Light  Thin Section Photograph of Sample LAR 12100 in Plane-Polarized Light 
Thin Section Photograph of Sample LAR 12100 in Reflected Light  Thin Section Photograph of Sample LAR 12100 in Cross-Polarized Light  South View of Sample LAR 12100  Top View of Sample LAR 12100 
Splits View of Sample LAR 12100  North View of Sample LAR 12100  East View of Sample LAR 12100  West View of Sample LAR 12100 
Bottom View of Sample LAR 12100 
Data from:
  MB102
  Table 0
  Line 0:
Date:2012
Mass (g):24.6
Pieces:1
Class:CV3
Weathering grade:B/C
Fayalite (mol%):1-25
Classifier:SI
Type spec mass (g):24.6
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 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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