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Miller Range 090700
Basic information Name: Miller Range 090700
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090700
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 35(1)  (2012)  CM2
Meteoritical Bulletin:  MB 100  (2012)  CM2
Recommended:  CM2    [explanation]

This is 1 of 636 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Field number: 20250
Approved 25 Feb 2012
Writeuphelp
Writeup from AMN 35(1):
Sample Number MIL 090700
Newsletter 35,1
Location Miller Range
Field Number 20250
Dimensions 1.5 x 1.0 x 1.0
Weight 2.01
Original Classification CM2 Chondrites
Pairing MIL 090700; MIL 090994
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 0-68; Ferrosilite (mol%): 2
Weathering
B
Fracturing
B
Macroscopic Description - Kathleen McBride
Fusion crust is present on the exterior surfaces and range in color from brown to purplish black with polygonal fractures. The interior matrices are black with a few lighter gray patches and gray/white chondrules and clasts.
Thin Section Description (,MIL 090700,3 and MIL 090994,2) - Cari Corrigan and Linda Welzenbach
The sections consist of a few small chondrules (up to 2 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-68, orthopyroxene is Fs2Wo2-44. Aqueous alteration of the matrix is light to moderate, and the chondrules are unaltered. The meteorites are CM2 chondrites and are likely paired.
Antarctic Meteorite Images for Sample MIL 090700
Thin Section Photo of Sample MIL 090700 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090700 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090700 in Reflected Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090700 in Reflected Light with 2.5X Magnification 
Thin Section Photo of Sample MIL 090700 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090700 in Cross-Polarized Light with 2.5X Magnification  Lab Photo of Sample MIL 090700 Showing North View  Lab Photo of Sample MIL 090700 Showing North View 
Data from:
  MB100
  Table 1
  Line 898:
Date:2009
Mass (g):2.0
Pieces:1
Class:CM2
Weathering grade:B
Fayalite (mol%):0-68
Ferrosilite (mol%):2
Classifier:SI
Type spec mass (g):2.0
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(1) (2012), JSC, Houston
Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 23' 14"S, 155° 58' 55"E)

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