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Miller Range 07531
Basic information Name: Miller Range 07531
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07531
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2.7 g
Antarctic Meteorite Newsletter:  AMN 32(2)  (2009)  CO3
Meteoritical Bulletin:  MB 98  (2010)  CO3
Recommended:  CO3    [explanation]

This is 1 of 616 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Field number: 19699
Approved 4 Sep 2009
Writeup from AMN 32(2):
Sample Number MIL 07531
Pairing MIL 07555MIL 07560 MIL 07531;MIL 07552;
Newsletter 32,2
Location Miller Range
Field Number 17973
Dimensions 1.25 x 1.5 x 1.0
Weight 2.7
Original Classification CO3 Chondrite
Macroscopic Description - Kathleen McBride
Brown/black fusion crust on these meteorites range from 50-100%. Oxidation and fractures are present. The interiors are fine grained black matrix with white/weathered inclusions/chondrules.
Thin Section (,2) Description - Cari Corrigan, Tim McCoy and Linda Welzenbach
These meteorites are so similar that a single description suffices. The sections consist of abundant small (up to 1 mm) chondrules, chondrule fragments and mineral grains in a dark matrix. Metal and sulfide occur within and rimming the chondrules. Olivine ranges in composition from Fa0-51. Two pyroxene analyses range from Fs1-11. The meteorites are CO3 chondrites.
Antarctic Meteorite Images for Sample MIL 07531
MIL 07531 Meteorite Sample Photograph Showing North View  MIL 07531 Meteorite Thin Section Photo with 2.5x magnification in Plane-Polarized Light  MIL 07531 Meteorite Thin Section Photo with 2.5x magnification in Reflected Light  MIL 07531 Meteorite Thin Section Photo with 2.5x magnification in Cross-Polarized Light 
Data from:
  Table 2
  Line 505:
Mass (g):2.7
Weathering grade:B
Fayalite (mol%):1.0-15
Ferrosilite (mol%):1.0-11
Type spec location:JSC, SI
Main mass:JSC
Comments:Fracturing A/B
   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)
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 32(2) (2009), JSC, Houston
Published in Meteoritical Bulletin, no. 98, MAPS 45, 1530-1551 (2010)
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     Recommended::   (83° 23' 7"S, 155° 59' 2"E)

     This is 1 of 43699 approved meteorites from Antarctica (plus 3802 unapproved names)
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