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Miller Range 090657
Basic information Name: Miller Range 090657
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090657
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 133.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 35(2)  (2012)  CR2
Meteoritical Bulletin:  MB 101  (2012)  CR2
Recommended:  CR2    [explanation]

This is 1 of 163 approved meteorites classified as CR2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), and CR chondrites
Comments: Field number: 20428
Approved 4 Sep 2012
Writeuphelp
Writeup from AMN 35(2):
Sample Number MIL 090657
Newsletter 35,2
Location Miller Range
Field Number 20428
Dimensions 4.5 x 4.0 x 3.5
Weight 133.14
Original Classification CR2 Chondrite
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 1-38; Ferrosilite (mol%): 2
Weathering
Be
Fracturing
A
Macroscopic Description - Cecilia Satterwhite
The exterior has black fractured fusion crust with oxidation haloes. The interior is black with abundant inclusions and chondrules. Some oxidation and minor evaporites are visible.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Sheri Singerling
The section exhibits small (100-300 microns), well-defined, metal-rich chondrules and CAIs in a dark matrix of FeO-rich phyllosilicate. Some chondrules have been replaced by phyllosilicates indicating preterrestrial alteration. Section is also moderately weathered. Silicates are unequilibrated; olivines range from Fa1-38, with most Fa0-2, and pyroxenes from Fs2Wo1. The meteorite is probably a CR2 chondrite.
Antarctic Meteorite Images for Sample MIL 090657
Lab Group Photo of Sample MIL 090657 Showing North View  Lab Photo of Sample MIL 090657 Showing Post-Processing View  Thin Section Photo of Sample MIL 090657 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090657 in Reflected Light with 1.25X Magnification 
Thin Section Photo of Sample MIL 090657 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090657 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090657 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090657 in Cross-Polarized Light with 2.5X Magnification 
Data from:
  MB101
  Table 0
  Line 0:
Date:2009
Mass (g):133.1
Pieces:1
Class:CR2
Weathering grade:Be
Fayalite (mol%):1-38
Ferrosilite (mol%):2
Classifier:SI
Type spec mass (g):133.1
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 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° 24' 40"S, 156° 35' 53"E)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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