header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 30 Nov 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Miller Range 11291
Basic information Name: Miller Range 11291
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 11291
Observed fall: No
Year found: 2011
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 102.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 36(1)  (2013)  Eucrite-br
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 167 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 22844
Approved 25 Feb 2013
Writeuphelp
Writeup from AMN 102:
Sample Number MIL 11291
Newsletter 36,1
Location Miller Range
Field Number 22844
Dimensions 5.4 x 5.0 x 2.5
Weight 102.12
Original Classification Eucrite (Brecciated)
Pairing MIL11041 and MIL11099
Mineral Composition (%Fa &  %Fs)
Ferrosilite (mol%): 25-62
Macroscopic Description - Cecilia Satterwhite
The exteriors have shiny black fractured fusion crust. Areas without fusion crust are a dark gray with some black grains and white inclusion. The interiors are light to medium gray matrix and have abundant small black grains and white inclusions.
Thin Section Description (,2) - Cari Corrigan, and Andrew Beck
These meteorites are dominated by fragments of fine-grained basaltic material, with grains ranging from ~50-150 microns, set in a matrix of comminuted pyroxene. A large basaltic clast (4 mm x 5 mm) makes up approximately 30% of the MIL 11291 section. In this clast, the pyroxene and plagioclase grains are both rounded and euhedral and grain sizes are approximately equal. Mineral compositions are homogeneous with orthopyroxene (Fs62Wo2), with lamellae of augite (Fs25Wo45), and plagioclase (An87-89Or0-1). The Fe/Mn ratio of the pyroxene is ~29-30. These meteorites are brecciated eucrites.
Antarctic Meteorite Images for Sample MIL 11291
Thin Section Photo of Sample MIL 11291 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11291 in Reflected Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11291 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 11291 in Plane-Polarized Light with 2.5X Magnification 
Thin Section Photo of Sample MIL 11291 in Reflected Light with 2.5X Magnification  Thin Section Photo of Sample MIL 11291 in Cross-Polarized Light with 2.5X Magnification  Lab Photo of Sample MIL 11291 Displaying   Lab Thin Section Photo of Sample MIL 11291 in Plane-Polarized Light 
Data from:
  MB102
  Table 0
  Line 0:
Date:2011
Mass (g):102.1
Pieces:1
Class:Eucrite-br
Weathering grade:A/B
Ferrosilite (mol%):25-62
Classifier:SI
Type spec mass (g):102.1
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
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Antarctica
Coordinates:
     Recommended::   (83° 28' 20"S, 157° 27' 25"E)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page