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Miller Range 11197
Basic information Name: Miller Range 11197
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 11197
Observed fall: No
Year found: 2011
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 39.3 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 36(1)  (2013)  Diogenite
Meteoritical Bulletin:  MB 102  (2013)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 522 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Field number: 21488
Approved 25 Feb 2013
Writeuphelp
Writeup from AMN 102:
Sample Number MIL 11197
Newsletter 36,1
Location Miller Range
Field Number 21488
Dimensions 3.9 x 3.3 x 1.2
Weight 39.26
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%): 28-29
Macroscopic Description - Cecilia Satterwhite
70% of the exterior has black patches of fusion crust that are glassy in areas. Areas without fusion crust reveal a tan/crème colored matrix. The interior is a crème/tan colored matrix with some crystalline faces and some yellow oxidation.
Thin Section Description (,2) - Cari Corrigan, Andrew Beck and Tim McCoy
The section is made up of coarse (up to 1-3 mm) intergrown pyroxene, with minor interstitial plagioclase and euhedral chromites (30 microns). A small amount of exsolution appears in the larger pyroxene grains. Pyroxene compositions are Fs28-29Wo3-5and plagioclase is An88-95Or1. The Fe/Mn ratio of the pyroxene is ~26-28. This meteorite is an unbrecciated diogenite.
Antarctic Meteorite Images for Sample MIL 11197
Lab Photo of Sample MIL 11197 Displaying Splits in North Bottom Orientation  Lab Thin Section Photo of Sample MIL 11197 in Plane-Polarized Light  Thin Section Photo of Sample MIL 11197 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11197 in Reflected Light with 1.25X Magnification 
Thin Section Photo of Sample MIL 11197 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11197 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 11197 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 11197 in Cross-Polarized Light with 2.5X Magnification 
Data from:
  MB102
  Table 0
  Line 0:
Date:2011
Mass (g):39.3
Pieces:1
Class:Diogenite
Weathering grade:B
Ferrosilite (mol%):28-29
Classifier:SI
Type spec mass (g):39.3
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 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' 16"S, 156° 45' 18"E)

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