Sample Petrographic Description
Sample Number | DOM 10350 |
Newsletter | 34,2 |
Location | Dominion Range |
Field Number | 21699 |
Dimensions (cm) | 3.5 x 2.5 x 2.0 |
Weight (g) | 27.29 |
Original Classification | Diogenite |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 24-30 | |
Weathering | |
B/C | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
30% of the exterior surface has black patches of fusion crust and the exposed interior consists of dark, crystalline material. This crystalline interior has green subangular grains held together with rust, stained, elongated or radiating clear grains with some black or dark angular grains mixed in. The meteorite is slightly friable. | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach, Tim McCoy, Andrew Beck, Nicole Lunning | |
This section shows an unusual texture of coarse crystals of pyroxene (up to 1.5 mm). Triple junctions are present though grains are not equigranular, suggesting that this meteorite has been recrystallized. Minor amounts of plagioclase and rare chromite are present. Orthopyroxene has a composition of Fs25Wo2-4 and plagioclase is An88-93Or0.3. The Fe/Mn ratio of the pyroxene is ~29. The meteorite is a diogenite. |
Antarctic Meteorite Images for Sample DOM 10350 | ||||
Lab Photo(s) : | ||||
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Antarctic Meteorite Images for Sample DOM 10350 | ||||
Thin Section Photo(s) : | ||||
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References for Sample DOM10350 | |
Mittlefehldt, D. W., 2015, Asteroid (4) Vesta: I. The howardite-eucrite-diogenite (HED) clan of meteorites. Chemie der Erde - Geochemistry, 75 Issue 2, Jun-15, 155-183, ISSN 0009-2819, http://dx.doi.org/10.1016/j.chemer.2014.08.002. |