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Miller Range 07003
Basic information Name: Miller Range 07003
     This is an OFFICIAL meteorite name.
Abbreviation: MIL 07003
Observed fall: No
Year found: 2007
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 292 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 31(2)  (2008)  Diogenite
Meteoritical Bulletin:  MB 96  (2009)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 427 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Field number: 17561
Approved 8 Sep 2008
Writeuphelp
Writeup from AMN 31(2):
Sample Number MIL 07003
Pairing  
Newsletter 31,2
Location Miller Range
Field Number 17561
Dimensions 8.0 x 4.5 x 5.0
Weight 291.948
Original Classification Diogenite
Macroscopic Description - Kathleen McBride
50% of the exterior is covered by dark brown black fusion crust with polygonal fractures. The exposed interior is tan and fractured. The tan interior with yellowish brown patches mars the surface. Black, glassy veins and inclusions and a few white clasts are present.
Thin Section (,4) Description - Tim McCoy and Linda Welzenbach
The section shows a groundmass of coarse (up to 2 mm) comminuted pyroxene with interstitial plagioclase and SiO2. Orthopyroxene has a composition of Fs27-34 Wo1-4 and plagioclase is An85-89Or1 . The Fe/Mn ratio of the pyroxene is ~30. The meteorite is a diogenite, although the pyroxene is on the FeO-rich end of diogenites towards cumulate eucrites.
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=1.57, δ18O= 3.57, Δ17 O = -0.29
δ17O = 1.48, δ18O = 3.66, Δ 17 O = -0.42
[where Δ17O = δ17O - 0.52 x δ18 O]

Antarctic Meteorite Images for Sample MIL 07003
MIL07003,4_5x_xpl.jpg  mil07003,0e.jpg  mil07003,0n.jpg  mil07003p.jpg 
mil07003postbreak.jpg  mil07003,0s.jpg  mil07003,0,1p.jpg  mil07003,0w.jpg 
MIL07003,4_2.5x_xpl.jpg  MIL07003,4_2.5x_ppl.jpg  MIL07003,4_5x_ppl.jpg 
Data from:
  MB96
  Table 5
  Line 476:
Mass (g):291.9
Class:Diogenite
Weathering grade:B
Plots: O isotopes:  
Catalogs:
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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° 24' 8"S, 156° 50' 28"E)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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