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Miller Range 090032
Basic information Name: Miller Range 090032
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090032
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 532 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 33(2)  (2010)  Nakhlite
Meteoritical Bulletin:  MB 99  (2011)  Martian (nakhlite)
Recommended:  Martian (nakhlite)    [explanation]

This is 1 of 21 approved meteorites classified as Martian (nakhlite).   [show all]
Search for other: Martian meteorites
Comments: Field number: 20176
Approved 12 Sep 2010
Writeuphelp
Writeup from AMN 33(2):
Sample Number MIL 090032
Pairing MIL 090030; MIL 090032; MIL 090136
Newsletter 33,2
Location Miller Range
Field Number 20176
Dimensions 8.0 x 6.5 x 7.5
Weight 532.19
Original Classification Nakhlite
Macroscopic Description - Kathleen McBride
The exterior surfaces of all three nakhlites have patches of black, wrinkled fusion crust. Areas without fusion crust have vugs. The interior broken faces are coarse grained and possess a crystalline, granular texture ranging from green to black.
Thin Section (,2) Description - Cari Corrigan and Linda Welzenbach
The sections are dominated by lathy to equant clinopyroxene that reaches 2 mm in maximum dimension. Mesostases occupies approximately 20% of the rocks and contains skeletal iron-titanium oxides. Clinopyroxenes have core compositions of Fs22Wo43 with rims reaching Fs49 Wo34. Olivines were observed in all three sections, are equant to subequant, and have slight alteration/oxidation along fractures. Olivine grains, which range between 0.5 and 1 mm, have core compositions of Fa57 and rim compositions of Fa89. Many olivines contain inclusions of mesostasis. Rare feldspars exist with compositions of An20-28 and Or11-14. These meteorites are nakhlites. These meteorites are similar enough that one description will suffice. They are also similar to and likely paired with, MIL 03346.
Antarctic Meteorite Images for Sample MIL 090032
Lab Photo of Sample MIL 090032 Showing Splits  Lab Photo of Sample MIL 090032  Lab Photo of Sample MIL 090032 Showing East View  Lab Photo of Sample MIL 090032 Showing North View 
Lab Photo of Sample MIL 090032 Showing South View  Lab Photo of Sample MIL 090032 Showing Top View  Lab Photo of Sample MIL 090032 Showing West View  Thin Section Photo of Sample MIL 090032 in Plane-Polarized Light with 1.25x Magnification 
Thin Section Photo of Sample MIL 090032 in Cross-Polarized Light with 1.25x Magnification  Thin Section Photo of Sample MIL 090032 in Plane-Polarized Light with 2.5x Magnification  Thin Section Photo of Sample MIL 090032 in Cross-Polarized Light with 2.5x Magnification 
Data from:
  MB99
  Table 0
  Line 0:
Date:2009
Mass (g):532.2
Class:Martian (nakhlite)
Weathering grade:B
Fayalite (mol%):58-78
Ferrosilite (mol%):22-50
Classifier:SI
Type spec mass (g):532.2
Type spec location:JSC
Main mass:JSC
Finder:ANSMET
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 33(2) (2010), JSC, Houston
Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 24' 16"S, 156° 33' 18"E)

Statistics:
     This is 1 of 38940 approved meteorites from Antarctica (plus 5051 unapproved names)
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