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Miller Range 090031
Basic information Name: Miller Range 090031
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090031
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 500 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 35(2)  (2012)  Ureilite
Meteoritical Bulletin:  MB 101  (2012)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 660 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Field number: 20441
Approved 4 Sep 2012
Writeuphelp
Writeup from AMN 35(2):
Sample Number MIL 090031
Newsletter 35,2
Location Miller Range
Field Number 20441
Dimensions 9.2 x 4.8 x 4.7
Weight 500.1
Original Classification Ureilite
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 20; Ferrosilite (mol%): 17
Weathering
B/C
Fracturing
A/B
Macroscopic Description - Cecilia Satterwhite
Black fusion crust covers 60% of the exterior with oxidation haloes. Areas without fusion crust are rusty brown and fractures penetrate the surface. The interior matrix is dark gray to black with discontinuous oxidation rind and rusty areas. Some crystalline faces are visible in the coarse grained texture.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy and Nicole Lunning
The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. The olivines have been mosaicized by shock. Olivines has cores of Fa20, with rims reduced to Fa15. Pigeonite (Fs17,Wo8) exhibits a blotchy appearance. The meteorite is a ureilite.
Antarctic Meteorite Images for Sample MIL 090031
Lab Photo of Sample MIL 090031 Showing Bottom View  Lab Photo of Sample MIL 090031 Showing East View  Lab Photo of Sample MIL 090031 Showing Splits View  Lab Photo of Sample MIL 090031 Showing North View 
Lab Photo of Sample MIL 090031 Showing Top View  Lab Photo of Sample MIL 090031 Showing West View  Thin Section Photo of Sample MIL 090031 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090031 in Reflected Light with 1.25X Magnification 
Thin Section Photo of Sample MIL 090031 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090031 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090031 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090031 in Cross-Polarized Light with 2.5X Magnification 
Data from:
  MB101
  Table 0
  Line 0:
Date:2009
Mass (g):500.1
Pieces:1
Class:Ureilite
Weathering grade:B/C
Fayalite (mol%):20
Ferrosilite (mol%):17
Classifier:SI
Type spec mass (g):500.1
Type spec location:JSC
Main mass:JSC
Finder:ANSMET
Comments:Submitted by AMN
Institutions
   and collections		 JSC: Mailcode XI, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 28 Jul 2022)
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 35(2) (2012), JSC, Houston
Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 10' 39"S, 155° 47' 35"E)

Statistics:
     This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)
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