Sample Petrographic Description
Sample Number | SAN 03473 |
Newsletter | 29,2 |
Location | Sandford Cliffs |
Field Number | 14903 |
Dimensions (cm) | 5.4 x 4.0 x 3.6 |
Weight (g) | 125.35 |
Original Classification | Diogenite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 22;Ferrosilite (mol%): 23 | |
Weathering | |
B/C | |
Fracturing | |
A | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior is a dull gray to tan color with no fusion crust visible. The weathered interior is tan with green crystals. | |
Thin Section Description (,2) - Tim McCoy | |
The section shows a groundmass of coarse (up to 1.5 mm) comminuted pyroxene of composition of Fs23Wo2. The meteorite is a diogenite. |
References for Sample SAN03473 | |
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. | |
Greenwood, R. C., Barrat, J. A., Yamaguchi, A., Franchi, I. A., Scott, E. R., Bottke, W. F., Gibson, J. M., 2014, The oxygen isotope composition of diogenites: Evidence for early global melting on a single, compositionally diverse, HED parent body. Earth and Planetary Science Letters, 390, 165-174. | |
Day, J. M. D., Walker, R. J., Qin, L., Rumble III, D., 2012, Late accretion as a natural consequence of planetary growth. Nature Geoscience, 5, 614-617, http://dx.doi.org/10.1038/ngeo1527. |