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Miller Range 090405
Basic information Name: Miller Range 090405
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090405
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 58.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 35(2)  (2012)  Achondrite-ung
Meteoritical Bulletin:  MB 101  (2012)  Achondrite-ung
Recommended:  Achondrite-ung    [explanation]

This is 1 of 140 approved meteorites classified as Achondrite-ung.   [show all]
Search for other: Achondrites, Ungrouped achondrites
Comments: Field number: 20964
Approved 4 Sep 2012
Writeuphelp
Writeup from AMN 35(2):
Sample Number MIL 090405
Newsletter 35,2
Location Miller Range
Field Number 20964
Dimensions 3.0 x 3.0 x 2.8
Weight 58.84
Original Classification Achon. Ungrouped
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 29-32; Ferrosilite (mol%): 10
Weathering
B
Fracturing
A
Macroscopic Description - Cecilia Satterwhite
Brown/black fusion crust covers 70% of the surface with some oxidation. The interior matrix is dark gray to black in color with a crystalline texture and some oxidation and metal.
Thin Section Description (,2) - Cari Corrigan, Andrew Beck, and Nicole Lunning
This section consists of an aggregate of equigranular (up to 1 mm) olivine grains. Individual olivine grains are rimmed by dark material containing finely dispersed grains of metal, sulfide, and chromite. Olivine has compositions of Fa29. Pyroxene analyses are Fs11Wo44. This meteorite looks superficially like a ureilite, but given the recent abstract by Warren and Rubin (2012, LPSC 43, #2528), we will classify it as an ungrouped achondrite. This meteorite is likely paired with MIL 090963.
Antarctic Meteorite Images for Sample MIL 090405
Lab Group Photo of Sample MIL 090405 Showing North View  Thin Section Photo of Sample MIL 090405 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090405 in Reflected Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090405 in Cross-Polarized Light with 1.25X Magnification 
Thin Section Photo of Sample MIL 090405 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090405 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090405 in Cross-Polarized Light with 2.5X Magnification 
Data from:
  MB101
  Table 0
  Line 0:
Date:2009
Mass (g):58.8
Pieces:1
Class:Achondrite-ung
Weathering grade:B
Fayalite (mol%):29-32
Ferrosilite (mol%):10
Classifier:SI
Type spec mass (g):58.8
Type spec location:JSC
Main mass:JSC
Finder:ANSMET
Comments:Submitted by AMN
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 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° 22' 2"S, 156° 29' 28"E)

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