Meteoritical Bulletin: Entry for Miller Range 07006

Writeup from AMN 31(2):

Sample Number	MIL 07006
Pairing
Newsletter	31,2
Location	Miller Range
Field Number	17961
Dimensions	1.5 x 1.0 x 0.75
Weight	1.368
Original Classification	Lunar Basaltic Breccia
Macroscopic Description - Kathleen McBride
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 Fa_41-52 . This meteorite is a basaltic lunar breccia, probably a regolith breccia. Fe/Mn ratio is 38-57.

Antarctic Meteorite Images for Sample MIL 07006

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.

Credit

Photos

Photographs from AMN:

Photograph from unknown source

A photo is in the write-up above