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Meteorite Hills 01085
Basic information Name: Meteorite Hills 01085
     This is an OFFICIAL meteorite name.
Abbreviation: MET 01085
Observed fall: No
Year found: 2001
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 30.6 g
NHM Catalogue:  5th Edition  (2000)  Ureilite-an
Antarctic Meteorite Newsletter:  AMN 25(2)  (2002)  Ureilite-an
Meteoritical Bulletin:  MB 87  (2003)  Ureilite-an
MetBase:  v. 7.1  (2006)  Ureilite-an
Recommended:  Ureilite-an    [explanation]

This is 1 of 6 approved meteorites classified as Ureilite-an.   [show all]
Search for other: Achondrites, Ureilites
Writeup from AMN 25(2):
Sample No.: MET 01085
Location: Meteorite Hills
Field No.: 13057
Dimensions (cm):   3.5x3.5x2.25
Weight (g): 30.614
Meteorite Type: Ureilite (Anomalous)

Macroscopic Description: Kathleen McBride
Slightly shiny, striated fusion crust covers approximately 25% of the exterior. The interior reveals a dark crystalline matrix with some rusty haloes and light colored inclusions.

Thin Section (, 2) Description: Tim McCoy, Gretchen Benedix, and Linda Welzenbach
During preparation of this thin section, a large (~2 mm) patch of carbonado was encountered and it remains in the potted butt. The section consists entirely of pigeonite grains up to 2 mm across. Feathery graphite is found in aggregates between the pyroxene grains. The pyroxenes exhibit undulatory extinction. Pigeonite compositions are equilibrated with Fs11Wo5. No olivine or subcalcic augite grains were found. The mineralogy and mineral compositions are consistent with classification as a ureilite, although no ureilites composed entirely of pigeonite are known (Mittlefehldt et al., 1998). The meteorite is an anomalous ureilite.

Skip Thin Sections met01085
MET 01085 - Plane-Polarized Light MET 01085 - Cross-Polarized Light MET 01085 - Plane-Polarized Light MET 01085 - Cross-Polarized Light MET 01085 - Cross-Polarized Light
Plane-Polarized Light Cross-Polarized Light Plane-Polarized Light Cross-Polarized Light Cross-Polarized Light
Data from:
  Table A1
  Line 162:
Mass (g):30.61
Weathering grade:B
Ferrosilite (mol%):11
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 25(2) (2002), JSC, Houston
Published in Meteoritical Bulletin, no. 87, MAPS 38, A189-A248 (2003)
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Photographs from AMN:
Photograph from unknown source A photo is in the write-up above

     Catalogue of Meteorites:   (79° 41'S, 155° 45'E)
     Recommended::   (79° 41'S, 159° 45'E)
Note: the NHM and MetBase coordinates are 80 km apart

     This is 1 of 43352 approved meteorites from Antarctica (plus 3802 unapproved names)
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