Sample Petrographic Description
| Sample Number | MIL 07009 |
| Newsletter | 31,2 |
| Location | Miller Range |
| Field Number | 18625 |
| Dimensions (cm) | 2.5 x 1.5 x 1.5 |
| Weight (g) | 12.25 |
| Original Classification | Howardite |
| Mineral Composition (%Fa & %Fs) | |
| Fayalite (mol%): 0;Ferrosilite (mol%): 25-60 | |
| Weathering | |
| A/B | |
| Fracturing | |
| A/B | |
| Macroscopic Description - | |
| Macroscopic Description: Kathleen McBride
99% of the exterior is covered with shiny black fusion crust. Oxidation halos are visible on one side. The interior is a light gray matrix with tiny white and black inclusions ( | |
| Thin Section Description - | |
| Thin Section (,4) 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 5 mm. A few large, but highly weathered, metal and sulfide particles are present. Pyroxene compositions range from Fs25-60Wo4-44. Plagioclase composition is An84-89. The meteorite is probably a howardite, although the large metal-sulfide particles could suggest an origin as a silicate clast from a mesosiderite. | |
| Antarctic Meteorite Images for Sample MIL 07009 | ||||
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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 07009 | ||||
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| Antarctic Meteorite Images for Sample MIL 07009 | ||||
| Thin Section Photo(s) : | ||||
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