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Miller Range 07667
Basic information Name: Miller Range 07667
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07667
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 60.8 g
Antarctic Meteorite Newsletter:  AMN 31(2)  (2008)  Iron-ung
Meteoritical Bulletin:  MB 96  (2009)  Iron ungrouped
Recommended:  Iron, ungrouped    [explanation]

This is 1 of 143 approved meteorites (plus 1 unapproved name) classified as Iron, ungrouped.   [show all]
Search for other: Iron meteorites, Metal-rich meteorites, and Ungrouped irons
Comments: Field number: 18613
Approved 8 Sep 2008
Writeup from AMN 31(2):
Sample Number MIL 07667
Newsletter 31,2
Location Miller Range
Field Number 18613
Dimensions 4.5 x 3.0 x 1.2
Weight 60.835
Original Classification Iron (Ungrouped)
Macroscopic Description - Cari Corrigan and Linda Welzenbach
This amoeboid-shaped meteorite is finely pitted over the entire surface. Fine flow lines are visible along prominent edges. Fusion crust is 80-90% and exhibits mild oxidation in the form of iridescence and minor halos. Fractures occur in several places over the surface and cross cut some of the lobes.
Thin Section Description - Tim McCoy, Cari Corrigan and Linda Welzenbach
The meteorite was examined from a cut and etched surface, which bisected one of the three distinct lobes of the specimen. Fusion crust reaching up to 0.4 mm in thickness is preserved over half the meteorite and a prominent fine a2 structure is present throughout. Short kamacite lamellae exceed 2 mm in width and are separated by thin (~100 micron wide) ribbons of taenite, which are often replaced by hydrated iron oxides of terrestrial origin. Many of the kamacite grains exhibit subgrains of a few hundred microns in size. Also present are ellipsoidal melt pockets with dendritic intergrowths of metallic and phosphorus-rich melt. A line scan across the meteorite suggests a composition of 6.6 wt.% Ni and 0.1 wt.% P. The meteorite is an iron. We tentatively classify it as ungrouped, recognizing that the section is so small and the structure so coarse that it is likely not representative of the larger mass from which it was derived. Of the known major groups, it is most similar to IAB, although at the extreme low-Ni, low-P composition for this group.

Antarctic Meteorite Images for Sample MIL 07667
MIL07667,2_2.5x_ref.jpg  mil07667,0B.jpg  MIL07667,0E.jpg  mil07667,0N.jpg 
mil07667,0S.jpg  mil07667,0Tpsd.jpg  mil07667,0W.jpg 
Data from:
  Table 5
  Line 500:
Mass (g):60.8
Class:Iron ungrouped
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' 31"S, 156° 1' 26"E)

     This is 1 of 43499 approved meteorites from Antarctica (plus 3802 unapproved names)
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