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Miller Range 07409
Basic information Name: Miller Range 07409
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07409
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 33(2)  (2010)  Acapulcoite-lodranite
Meteoritical Bulletin:  MB 99  (2011)  Acapulcoite/lodranite
Recommended:  Acapulcoite/Lodranite    [explanation]

This is 1 of 11 approved meteorites classified as Acapulcoite/Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Primitive achondrites
Comments: Field number: 18670
Approved 13 Sep 2010
Writeuphelp
Writeup from AMN 33(2):
Sample Number MIL 07409
Newsletter 33,2
Location Miller Range
Field Number 18670
Dimensions 1.5 x 1.5 x 1.0
Weight 2.72
Original Classification Acapulcoite-Lodranite
Macroscopic Description - Kathleen McBride
40% of the exterior is covered with brown/black fusion crust with oxidation haloes. The interior matrix is friable, rusty and reveals rust-stained yellow inclusions.
Thin Section (,2) Description - Cari Corrigan, Tim McCoy and Linda Welzenbach
The section consists of an equigranular aggregate of olivine, pyroxene, plagioclase, and metal with minor sulfide and chromite, with an average grain size of 0.5 mm. Olivine (Fa12) and pyroxene (Fs11) are homogeneous. Six calcic pyroxene grains were analyzed (Fs4). Feldspars are also homogeneous (An12). This section is moderately weathered. The meteorite is probably a transitional acapulcoite-lodranite similar to, e.g., GRA 95209.
Antarctic Meteorite Images for Sample MIL 07409
Thin Section Photo of Sample MIL 07409 in Plane-Polarized Light with 1.25x Magnification  Thin Section Photo of Sample MIL 07409 in Cross-Polarized Light with 1.25x Magnification 
Data from:
  MB99
  Table 0
  Line 0:
Date:2007
Mass (g):2.7
Pieces:1
Class:Acapulcoite-lodranite
Weathering grade:C
Fayalite (mol%):12-13
Ferrosilite (mol%):4, 11
Classifier:SI
Type spec mass (g):2.7
Type spec location:JSC
Main mass:JSC
Finder:ANSMET
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 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° 22' 42"S, 156° 10' 52"E)

Statistics:
     This is 1 of 44248 approved meteorites from Antarctica (plus 3802 unapproved names)
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