Sample Petrographic Description
Sample Number | MIL 07006 |
Newsletter | 31,2 |
Location | Miller Range |
Field Number | 17961 |
Dimensions (cm) | 1.5 x 1.0 x 0.75 |
Weight (g) | 1.37 |
Original Classification | Lunar-Basaltic Breccia |
Updated Classification | Lunar Polymict Anorthositic Regolith Breccia |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 41-52;Ferrosilite (mol%): 28-53 | |
Weathering | |
B | |
Fracturing | |
A/B | |
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 Description (,3) - Tim McCoy, Linda Welzenbach, Cari Corrigan, 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. | |
Reclassification Notes (AMN 47,1) | |
Added polymict to reflect the presence of minor basaltic and major anorthositic clasts as well as glassy spherules in the matrix. Joy, K. H., Crawford, I. A., & Snape, J. F. (2010) Lunar Meteorite Miller Range 07006: Petrography and VLT Basalt Clast Inventory. In 41st Annual Lunar and Planetary Science Conference (No. 1533, p. 1793). |
Antarctic Meteorite Images for Sample MIL 07006 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 07006 | ||||
Thin Section Photo(s) : | ||||
References for Sample MIL07006 | |
Korotev, R.L., and Zeigler, R.A., 2015, ANSMET Meteorites from the Moon. In Righter, K., Corrigan, C.M., McCoy, T.J., and Harvey, R.P. Meteorites: A Pictorial Guide to the Collection, First Edition, AGU Wiley, pp. 101-130. | |
Robinson, K. L., Treiman, A. H., Joy, K. H., 2012, Basaltic fragments in lunar feldspathic meteorites: Connecting sample analyses to orbital remote sensing. Meteoritics & Planetary Science, 47, 387-399, http://dx.doi.org/10.1111/j.1945-5100.2012.01344.x. |