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Miller Range 090799
Basic information Name: Miller Range 090799
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090799
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 28.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 35(2)  (2012)  LL Impact melt
Meteoritical Bulletin:  MB 101  (2012)  LL-melt rock
Recommended:  LL-melt rock    [explanation]

This is 1 of 12 approved meteorites classified as LL-melt rock.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Field number: 20696
Approved 4 Sep 2012
Writeuphelp
Writeup from AMN 35(2):
Sample Number MIL 090799
Newsletter 35,2
Location Miller Range
Field Number 20696
Dimensions 3.5 x 3.0 x 1.5
Weight 28.76
Original Classification LL Chondrite (Impact Melt)
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 32; Ferrosilite (mol%): 26
Weathering
C
Fracturing
C
Macroscopic Description - Kathleen McBride
Thin brown/black fractured fusion crust covers the surface. The interior is rusty and brittle with high metal content.
Thin Section Description (,2) - Cari Corrigan, and Nicole Lunning
The section consists dominantly of a fine-grained melt-textured matrix of olivine and pyroxene (1-10 microns) with irregular blebs of metal and sulfide and fragments of mineral grains (200-300 micron grain size.) The mineral compositions are homogenous; olivine is Fa32 and orthopyroxene is Fs26. The meteorite is an impact melt of an LL chondrite precursor, and possibly just a clast within an LL chondrite breccias, as one end of the section shows usual LL chondrite textures.
Antarctic Meteorite Images for Sample MIL 090799
Lab Group Photo of Sample MIL 090799 Showing North View  Thin Section Photo of Sample MIL 090799 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090799 in Reflected Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090799 in Cross-Polarized Light with 1.25X Magnification 
Thin Section Photo of Sample MIL 090799 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090799 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090799 in Cross-Polarized Light with 2.5X Magnification 
Data from:
  MB101
  Table 0
  Line 0:
Date:2009
Mass (g):28.8
Pieces:1
Class:LL-melt rock
Weathering grade:C
Fayalite (mol%):32
Ferrosilite (mol%):26
Classifier:SI
Type spec mass (g):28.8
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' 22"S, 156° 28' 16"E)

Statistics:
     This is 1 of 44543 approved meteorites from Antarctica (plus 3802 unapproved names)
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Revision
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