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Miller Range 07666
Basic information Name: Miller Range 07666
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07666
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 96.3 g
Antarctic Meteorite Newsletter:  AMN 31(2)  (2008)  IIAB
Meteoritical Bulletin:  MB 96  (2009)  Iron IIAB
Recommended:  Iron, IIAB    [explanation]

This is 1 of 144 approved meteorites classified as Iron, IIAB.   [show all]
Search for other: IIAB irons, Iron meteorites, and Metal-rich meteorites
Comments: Field number: 18159
Approved 8 Sep 2008
Writeup from AMN 31(2):
Sample Number MIL 07666
Newsletter 31,2
Location Miller Range
Field Number 18159
Dimensions 5.0 x 2.9 x 1.4
Weight 96.25
Original Classification Iron (IIAB)
Macroscopic Description - Cari Corrigan and Linda Welzenbach
This lozenge-shaped meteorite is flight oriented with a slight melt flange on the top side. The bottom or flight surface is finely pitted, the top side smoother but with sporadic, deeper regmaglypts. Fusion crust is 100% and exhibits mild oxidation in the form of iridescence and minor halos.
Thin Section Description - Tim McCoy, Cari Corrigan and Linda Welzenbach
The meteorite was examined from a cut and etched surface, which bisected one end or nose of the specimen. A thin fusion crust is preserved over most of the meteorite, and gradational heat alteration zone of approximately 1.0-2 mm thick underlies the fusion crust on the bottom or flight side, and is less than 0.3 mm thick on the top side. A prominent coarse α2 structure is found throughout. The section exhibits subequant grains ranging up to 1 mm in size which meet at 120° triple junctions throughout. The grains often exhibit sub-grain boundaries with subgrains of 100-200 microns decorated by taenite precipitates. One prominent fracture with iron oxides cross cuts the specimen following grain boundaries. Equant schreibersites up to ~300 microns are observed. A line scan across the meteorite suggests a composition of 5.4 wt.% Ni and 0.3 wt.% P. The meteorite is an iron. The composition suggests a tentative classification of IIAB.

Antarctic Meteorite Images for Sample MIL 07666
MIL07666,2_2.5x_ref.jpg  mil07666,0B.jpg  mil07666,0E.jpg  mil07666,0N.jpg 
mil07666,0S.jpg  mil07666,0Spsd.jpg  mil07666,0W.jpg 
Data from:
  Table 5
  Line 499:
Mass (g):96.3
Class:Iron IIAB
Weathering grade:A/B
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References: Published in Antarctic Meteorite Newsletter 31(2) (2008), JSC, Houston
Published in Meteoritical Bulletin, no. 96, MAPS 44, 1355-1397 (2009)
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Photographs from AMN:
Photograph from unknown source A photo is in the write-up above

     Recommended::   (83° 23' 38"S, 156° 15' 22"E)

     This is 1 of 43332 approved meteorites from Antarctica (plus 3802 unapproved names)
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