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Miller Range 11283
Basic information Name: Miller Range 11283
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 11283
Observed fall: No
Year found: 2011
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 0.2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 38(1)  (2015)  Eucrite
Meteoritical Bulletin:  MB 104  (2015)  Eucrite
Recommended:  Eucrite    [explanation]

This is 1 of 587 approved meteorites (plus 1 unapproved name) classified as Eucrite.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 22836
Approved 12 Feb 2015
Writeuphelp
Writeup from AMN 38(1):
Sample Number MIL 11283
Newsletter 38,1
Location Miller Range
Field Number 22836
Dimensions 0.75 x 0.75 x 0.5
Weight 0.23
Original Classification Eucrite (Brecciated)
Mineral Composition (%Fa &  %Fs)
Ferrosilite (mol%): 33-63
Weathering
B
Fracturing
A
Macroscopic Description - Kathleen McBride
The exterior of this eucrite is covered with 100% dark brown to black fusion crust.
Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Pamela Salyer
This meteorite is dominated by exceptionally fine-grained (~200 micron average grain size) clastic material with occasional coarser clasts of pyroxene and plagioclase. These also occur as isolated grains within the matrix. The section is 80% rimmed by fusion crust. Mineral compositions are pyroxene of Fs33-63Wo5-24, and plagioclase of An83-90Or0.5. The Fe/Mn ratio of the pyroxene is ~30. The meteorite is a brecciated eucrite.
Antarctic Meteorite Images for Sample MIL 11283
Lab Group Photo of Sample MIL 11283 Displaying North Orientation  Thin Section Photo of Sample MIL 11283 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11283 in Reflected Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11283 in Cross-Polarized Light with 1.25X Magnification 
Thin Section Photo of Sample MIL 11283 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 11283 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 11283 in Cross-Polarized Light with 2.5X Magnification 
Data from:
  MB104
  Table 0
  Line 0:
Date:2011
Mass (g):0.2
Pieces:1
Class:Eucrite
Weathering grade:B
Ferrosilite (mol%):33-63
Classifier:SI
Type spec mass (g):0.2
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 38(1) (2015), JSC, Houston
Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 29' 35"S, 156° 41' 6"E)

Statistics:
     This is 1 of 43857 approved meteorites from Antarctica (plus 3802 unapproved names)
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