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Miller Range 11099
Basic information Name: Miller Range 11099
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 11099
Observed fall: No
Year found: 2011
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 6.9 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 36(1)  (2013)  Diogenite
Meteoritical Bulletin:  MB 102  (2013)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 437 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Field number: 22588
Approved 25 Feb 2013
Writeuphelp
Writeup from AMN 102:
Sample Number MIL 11099
Newsletter 36,1
Location Miller Range
Field Number 22588
Dimensions 2.0 x 1.75 x 1.5
Weight 6.85
Original Classification Diogenite
Pairing MIL 090112, MIL 090291, MIL 11099, MIL 11198, MIL 11199, MIL 11201, MIL 11202, MIL 11204, MIL 11205
Mineral Composition (%Fa &  %Fs)
Ferrosilite (mol%): 30-48
Macroscopic Description - Kathleen McBride and Cecilia Satterwhite
The exterior surfaces have black patches of fusion crust that are glassy in some areas. The interior matrices are crème/tan colored with crystalline faces. Some yellow oxidation is present. These diogenites have a medium to coarse grained texture.
Thin Section Description (,2) - Cari Corrigan and Andrew Beck
The sections show a groundmass of coarse (up to 1.5 mm) comminuted pyroxene, with minor plagioclase, euhedral chromites (30 microns). Pyroxene compositions are Fs30-48Wo1-4and plagioclase is An87-92Or1. The Fe/Mn ratio of the pyroxene is ~28-29. These meteorites exhibit numerous shock features (including pockets of glass). MIL 11197 is less fragmented and the overall grain size is slightly larger, including a large (~2x4 mm) chromite grain. These are brecciated diogenites. They are similar enough to suggest pairing with the MIL 090112 group of brecciated diogenites described in the Fall 2012 newsletter.
Antarctic Meteorite Images for Sample MIL11099
Lab Group Photo of Sample MIL11099 Displaying West Orientation  Lab Group Photo of Sample MIL11099 Displaying South Orientation  Lab Group Photo of Sample MIL11099 Displaying North Orientation  Lab Group Photo of Sample MIL11099 Displaying East Orientation 
Lab Photo of Sample MIL11099 Displaying Splits  Lab Thin Section Photo of Sample MIL 11099 in Plane-Polarized Light  Thin Section Photo of Sample MIL 11099 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11099 in Reflected Light with 1.25X Magnification 
Thin Section Photo of Sample MIL 11099 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11099 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 11099 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 11099 in Cross-Polarized Light with 2.5X Magnification 
Data from:
  MB102
  Table 0
  Line 0:
Date:2011
Mass (g):6.9
Pieces:1
Class:Diogenite
Weathering grade:B
Ferrosilite (mol%):30-48
Classifier:SI
Type spec mass (g):6.9
Type spec location:JSC
Main mass:JSC
Finder:ANSMET
Comments:Submitted by AMN
Institutions
   and collections
JSC: Mailcode KT, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 3 Sep 2013)
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 36(1) (2013), JSC, Houston
Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 24' 6"S, 156° 51' 36"E)

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)
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