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LaPaz Icefield 10060
Basic information Name: LaPaz Icefield 10060
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 10060
Observed fall: No
Year found: 2010
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 31 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 36(1)  (2013)  Howardite
Meteoritical Bulletin:  MB 102  (2013)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 374 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 25 Feb 2013
Writeuphelp
Writeup from AMN 102:
Sample Number LAP 10060
Newsletter 36,1
Location LaPaz Ice Field
Field Number 22983
Dimensions 4.5 x 3.0 x 1.5
Weight 30.97
Original Classification Howardite
Mineral Composition (%Fa &  %Fs)
Ferrosilite (mol%): 24-60
Macroscopic Description - Kathleen McBride
The brown/black exterior surface has a shiny patch of fusion crust. The gray matrix has low metal and white and dark gray clasts.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy and Andrew Beck
The section shows a groundmass of comminuted pyroxene and plagioclase (10-20 microns) with large diogenitic and eucritic grain fragments up to 200 micron, as well as 100-200 micron troilite and metal blebs. One particularly large (3 x 5 mm) bleb of troilite makes up ~20% of the section. Pyroxene compositions range from Fs24-60Wo2-6. Plagioclase is An86-99Or0-1. The Fe/Mn ratio of this meteorite is 26-30, with one outlier at 36. This meteorite is either a metal rich howardite or a silicate clast separated from a mesosiderite.
Antarctic Meteorite Images for Sample LAP 10060
Thin Section Photo of Sample LAP 10060 in Reflected Light with 1.25X Magnification  Thin Section Photo of Sample LAP 10060 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample LAP 10060 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample LAP 10060 in Reflected Light with 2.5X Magnification 
Thin Section Photo of Sample LAP 10060 in Cross-Polarized Light with 2.5X Magnification  Lab Group Photo of Sample LAP 10060 Displaying North Orientation  Thin Section Photo of Sample LAP 10060 in Plane-Polarized Light with 1.25X Magnification 
Data from:
  MB102
  Table 0
  Line 0:
Date:2010
Mass (g):31.0
Pieces:1
Class:Howardite
Weathering grade:A
Ferrosilite (mol%):24-60
Classifier:SI
Type spec mass (g):31.0
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(1) (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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