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Miller Range 07662
Basic information Name: Miller Range 07662
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07662
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 51.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 31(2)  (2008)  Eucrite-br
Meteoritical Bulletin:  MB 96  (2009)  Eucrite brecciated
Recommended:  Eucrite-br    [explanation]

This is 1 of 160 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Field number: 18352
Approved 8 Sep 2008
Writeuphelp
Writeup from AMN 31(2):
Sample Number MIL 07662
Pairing  
Newsletter 31,2
Location Miller Range
Field Number 18352
Dimensions 4.5 x 5.0 x 2.0
Weight 51.362
Original Classification Eucrite (Brecciated)
Macroscopic Description - Kathleen McBride
Black fusion crust that is shiny and ropey covers 15% of the exterior. Areas without fusion crust are a dirty gray color with large pinkish area and black and white inclusions. The interior looks the same as the exterior minus the fusion crust.
Thin Section (,5) Description - Tim McCoy and Linda Welzenbach
The section is a breccia with mono- and polyminerallic clasts of pyroxene and plagioclase up to 1 mm in diameter in a fine-grained melt-textured matrix which is coarser-grained on one half of the section and cryptocrystalline on the other half. Pyroxene is finely exsolved, yielding pigeonitic compositions of Fs45-54Wo5-15 and plagioclase is An86-93Wo0-1 The Fe/Mn ratio of the pyroxene is ~28. The meteorite is a eucritic impact melt breccia.
Oxygen Isotopic Analysis - Z. Sharp, University of New Mexico
Oxygen isotopic analyses of two splits yielded the following results which fall in the HED meteorite field. All samples were cleaned in a 10% HCl solution for 1 minute, followed by ultrasonication.
δ17O = 1.68, δ18O =3.86, Δ17O = -0.33
δ17O = 1.59, δ18O = 3.70, Δ17O = -0.34
δ17O =1.64, δ18O = 3.89, Δ17O = -0.38
[where Δ 17O = δ17O - 0.52 x δ18O]

Antarctic Meteorite Images for Sample MIL 07662
MIL07662,5_5x_xpl.jpg  mil07662,0e.jpg  mil07662,n.jpg  mil07662,0s.jpg 
mil07662,0,1,2i.jpg  mil07662,0w.jpg  MIL07662,5_5x_ppl.jpg  MIL07662,5_2.5x_xpl.jpg 
MIL07662,5_2.5x_ppl.jpg 
Data from:
  MB96
  Table 5
  Line 495:
Mass (g):51.4
Class:Eucrite brecciated
Weathering grade:B/C
Plots: O isotopes:  
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 31(2) (2008), JSC, Houston
Published in Meteoritical Bulletin, no. 96, MAPS 44, 1355-1397 (2009)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Geography:

Antarctica
Coordinates:
     Recommended::   (83° 17' 21"S, 155° 48' 18"E)

Statistics:
     This is 1 of 38937 approved meteorites from Antarctica (plus 5051 unapproved names)
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