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: 51.4 g
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]
51.4 g
