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Miller Range 07460
Basic information Name: Miller Range 07460
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07460
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 34(1)  (2011)  CM1
Meteoritical Bulletin:  MB 101  (2012)  CM1
Recommended:  CM1    [explanation]

This is 1 of 27 approved meteorites classified as CM1.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 1), CM chondrites, and CM-CO clan chondrites
Comments: Field number: 18389
Approved 14 Feb 2011
Writeuphelp
Writeup from AMN 34(1):
Sample Number MIL 07460
Newsletter 34,1
Location Miller Range
Field Number 18389
Dimensions 1.75 x 1.25 x 0.5
Weight 2.14
Original Classification CM1 Chondrite
Weathering
BE
Fracturing
B
Macroscopic Description - Kathleen McBride
50% of the exterior has black fusion crust with polygonal fractures. The interior matrix is a black with evaporites and tiny light colored inclusions.
Thin Section (,2) Description - Cari Corrigan and Linda Welzenbach
The section consists of a few small chondrules (up to 0.5 mm) that have been completely replaced by phyllosilicate set in an Fe-rich serpentine matrix. No isolated mineral grains or CAIs are apparent; sulfide grains are present as are abundant coarse carbonate grains. The section exhibits a strong fabric formed by the alignment of elongated remnant chondrules. Unaltered olivine or pyroxene grains of sufficient size for microprobe analyses were not found. This meteorite is a CM1 chondrite.
Antarctic Meteorite Images for Sample MIL 07460
Thin Section Photo of Sample MIL 07460 at 2.5X Magnification in Plane-Polarized Light  Thin Section Photo of Sample MIL 07460 at 2.5X Magnification in Reflected Light  Thin Section Photo of Sample MIL 07460 at 2.5X Magnification in Cross-Polarized Light  Lab Photo of Sample MIL 07460 Displaying Splits View 
Lab Photo of Sample MIL 07460 Displaying North View 
Data from:
  MB99
  Table 0
  Line 0:
Date:2007
Mass (g):2.1
Pieces:1
Class:CM1
Weathering grade:Be
Classifier:SI
Type spec mass (g):2.1
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 34(1) (2011), JSC, Houston
Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 28' 49"S, 156° 56' 28"E)

Statistics:
     This is 1 of 39175 approved meteorites from Antarctica (plus 5051 unapproved names)
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