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Miller Range 07668
Basic information Name: Miller Range 07668
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07668
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 3 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 32(2)  (2009)  CM2
Meteoritical Bulletin:  MB 98  (2010)  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: 18356
Approved 4 Sep 2009
Writeuphelp
Writeup from AMN 32(2):
Sample Number MIL 07668
Pairing
Newsletter 32,2
Location Miller Range
Field Number 18356
Dimensions 1.25 x 1.5 x 1.5
Weight 2.99
Original Classification CM2 Chondrite
Macroscopic Description - Kathleen McBride
Purplish fusion crust with polygonal fractures covers 40% of the exterior surface. The interior is a black matrix with a 2 mm thick brown oxidation rind. Light colored chondrules are visible.
Thin Section (,2) Description - Cari Corrigan, Tim McCoy and Linda Welzenbach
The section consists of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal, sulfide and carbonate grains are present. Olivine compositions are Fa1-40. Aqueous alteration of the matrix is substantial, but the chondrules are only modestly altered. The meteorite is a CM2 chondrite.
Antarctic Meteorite Images for Sample MIL 07668
MIL 07668 Meteorite Sample Photograph Showing Sample Splits  MIL 07668 Meteorite Sample Photograph Showing East View  MIL 07668 Meteorite Sample Photograph Showing North View  MIL 07668 Meteorite Sample Photograph Showing South View 
MIL 07668 Meteorite Sample Photograph Showing West View  MIL 07668 Meteorite Thin Section Photo with 5x magnification in Plane-Polarized Light  MIL 07668 Meteorite Thin Section Photo with 5x magnification in Cross-Polarized Light 
Data from:
  MB98
  Table 2
  Line 516:
Mass (g):3.0
Class:CM2
Weathering grade:B
Fayalite (mol%):1.0-40
Ferrosilite (mol%):
Classifier:SI
Type spec location:JSC, SI
Main mass:JSC
Comments:Fracturing A/B
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 32(2) (2009), JSC, Houston
Published in Meteoritical Bulletin, no. 98, MAPS 45, 1530-1551 (2010)
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Geography:

Antarctica
Coordinates:
     Recommended::   (83° 28' 49"S, 156° 56' 31"E)

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