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Miller Range 090521
Basic information Name: Miller Range 090521
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 090521
Observed fall: No
Year found: 2009
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2.7 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 35(1)  (2012)  CK6
Meteoritical Bulletin:  MB 100  (2012)  CK6
Recommended:  CK6    [explanation]

This is 1 of 83 approved meteorites classified as CK6.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites
Comments: Field number: 20706
Approved 25 Feb 2012
Writeuphelp
Writeup from AMN 35(1):
Sample Number MIL 090521
Newsletter 35,1
Location Miller Range
Field Number 20706
Dimensions 1.5 x 1.5 x 0.75
Weight 2.67
Original Classification CK6 Chondrite
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 28; Ferrosilite (mol%): 21
Weathering
B
Fracturing
A/B
Macroscopic Description - Kathleen McBride
The exterior fusion crust is black with polygonal fractures. The interior matrix is gray with minor rust and vague chondrules.
Thin Section Description (,2) - Cari Corrigan and Linda Welzenbach
The section consists of only one very relict chondrule in a matrix of finer-grained silicates, sulfides and very abundant magnetite. The meteorite is only slightly weathered. Silicates are homogeneous. Olivine is Fa28, with one at Fa53 and one orthopyroxene analysis was Fs21Wo15. The meteorite appears to be a CK6 chondrite.
Antarctic Meteorite Images for Sample MIL 090521
Thin Section Photo of Sample MIL 090521 in Plane-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090521 in Plane-Polarized Light with 2.5X Magnification  Thin Section Photo of Sample MIL 090521 in Reflected Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090521 in Reflected Light with 2.5X Magnification 
Thin Section Photo of Sample MIL 090521 in Cross-Polarized Light with 1.25X Magnification  Thin Section Photo of Sample MIL 090521 in Cross-Polarized Light with 2.5X Magnification  Lab Photo of Sample MIL 090521 Showing North View 
Data from:
  MB100
  Table 1
  Line 779:
Date:2009
Mass (g):2.7
Pieces:1
Class:CK6
Weathering grade:B
Fayalite (mol%):28
Ferrosilite (mol%):21
Classifier:SI
Type spec mass (g):2.7
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° 21' 52"S, 156° 28' 37"E)

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