Sample Petrographic Description
| Sample Number | MIL 05062 |
| Newsletter | 30,1 |
| Location | Miller Range |
| Field Number | 18769 |
| Dimensions (cm) | 3.6 x 3.5 x 2.1 |
| Weight (g) | 23.79 |
| Original Classification | Howardite |
| Pairing | MIL 05062; MIL 05165; |
| Mineral Composition (%Fa & %Fs) | |
| Fayalite (mol%): 29-54 | |
| Weathering | |
| B | |
| Fracturing | |
| A | |
| Macroscopic Description - Cecilia Satterwhite, Kathleen McBride | |
| 30-40% brown/black fusion crust is on the exteriors with polygonal fractures. The interiors are tan to gray in color and are friable. No metal is visible. Black and white inclusions and odd shaped clasts of various colors are visible. | |
| Thin Section Description (,2) - Tim McCoy, Valerie Reynolds | |
| The sections are so similar that a single description suffices. The sections show a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with fine- to coarse-grained basaltic clasts ranging up to 5 mm. Fine-grained clasts, presumably impact melt in origin, are observed. Most of the pyroxene is orthopyroxene and pigeonites with compositions ranging from Fs29-57Wo1-7, although augite of Fs40-60Wo24-40 is found. The Fe/Mn ratio is ~30 and feldspar is anorthitic (An90-92). The meteorites are howardites. | |
| Antarctic Meteorite Images for Sample MIL 05062 | ||||
| Field Photo(s) : | ||||
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| Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah | ||||
| Antarctic Meteorite Images for Sample MIL 05062 | ||||
| Lab Photo(s) : | ||||
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