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Miller Range 090564
Basic information Name: Miller Range 090564
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090564
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 258 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 35(2)  (2012)  Iron, IVA
Meteoritical Bulletin:  MB 101  (2012)  Iron, IVA
Recommended:  Iron, IVA    [explanation]

This is 1 of 80 approved meteorites (plus 1 unapproved name) classified as Iron, IVA.   [show all]
Search for other: Iron meteorites, IVA irons, and Metal-rich meteorites
Comments: Field number: 20014
Approved 4 Sep 2012
Writeuphelp
Writeup from AMN 35(2):
Sample Number MIL 090564
Newsletter 35,2
Location Miller Range
Field Number 20014
Dimensions 5.0 x 3.0 x 4.0
Weight 257.71
Original Classification Iron-IVA
Weathering
A/B
Fracturing
A
Macroscopic Description - Tim McCoy and Linda Welzenbach
This egg-shaped iron exhibits a mildly pitted surface with oxidation halos and infrequent elongated indentations reaching 7 mm in length. A flattened surface exhibits a copper color and metallic sheen.
Thin Section Description - Tim McCoy and Linda Welzenbach
The section samples a portion of an interior slice, including the surface of the sample. No fusion crust remains on the meteorite, although phosphides in the thick (~3-4 mm) heat-altered zone often exhibit spherical voids suggestive of micromelting and volatilization. The heat altered zone is dominated by an irregular plessitic structure, while the interior exhibits a more regular plessitic to micro-Widmanstätten pattern with rare platelets of kamacite and abundant rhabdite phosphides. The entire meteorite appears to have formed from a single austenite crystal. A microprobe traverse finds kamacite, zoned taenite with rim compositions up to 30 wt.% Ni, and rare Ni-rich (45 wt.%) phosphides. The bulk composition is approximately 9.9 wt.% Ni, 0.7 wt.% Co and 0.2 wt.% P. The meteorite is a Ni-rich ataxite and chemically and structurally similar to some high-Ni IVA irons.
Antarctic Meteorite Images for Sample MIL 090564
Thin Section Photo of Sample MIL 090564 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090564 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090564 in Plane-Polarized Light with 5X Magnification  Thin Section Photo of Sample MIL 090564 in Plane-Polarized Light with 5X Magnification 
Lab Photo of Sample MIL 090564 Showing Bottom View  Lab Photo of Sample MIL 090564 Showing West View  Lab Photo of Sample MIL 090564 Showing East View  Lab Photo of Sample MIL 090564 Showing North View 
Lab Photo of Sample MIL 090564 Showing South View  Lab Photo of Sample MIL 090564 Showing Top View 
Data from:
  MB101
  Table 0
  Line 0:
Date:2009
Mass (g):257.7
Pieces:1
Class:Iron, IVA
Weathering grade:A
Classifier:SI
Type spec mass (g):257.7
Type spec location:SI
Main mass:SI
Finder:ANSMET
Comments:Submitted by AMN
Institutions
   and collections
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 35(2) (2012), JSC, Houston
Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 23' 59"S, 155° 52' 37"E)

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