Name: Miller Range 07006 This is an OFFICIAL meteorite name. Abbreviation: MIL 07006 Observed fall: No Year found: 2007 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 1.4 g
The exterior has no fusion crust and consists of a black matrix with visible clasts. The interior is a black matrix with gray, tan and white clasts.
Thin Section (,3) Description - Tim McCoy, Linda Welzenbach, Cari Corrigan, and Rhiannon Mayne
The section shows a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with fine- to coarse-grained basaltic clasts ranging up to 2.5 mm. The matrix is extremely fine-grained and shock-darkened and melted in places. The pyroxene compositions range from Fs53Wo7 to Fs28Wo41 with a range of intermediate compositions. Plagioclase is An96 Olivine is Fa41-52 . This meteorite is a basaltic lunar breccia, probably a regolith breccia. Fe/Mn ratio is 38-57.
MIL
07006 original classification in AMN 31, no. 2 as a lunar basaltic breccia,
but additional studies of more thin sections have revealed a predominance of
feldspathic material over basaltic [1,2]. This is also reflected in the bulk
composition which has high Al2O3 like other feldspathic regolith breccia [1].
MIL 07006 is reclassified as an lunar anorthositic regolith breccia.
[1] Liu, Y. et al. (2009) LPSC XL, #2105.
[2]
Korotev, R.L. et al. (2009) LPSC XL, #1137.