Sample Petrographic Description
Sample Number | MET 01182 |
Newsletter | 27,1 |
Location | Meteorite Hills |
Field Number | 13046 |
Dimensions (cm) | 4.8 x 3.4 x 2.5 |
Weight (g) | 69.86 |
Original Classification | H3.8 Chondrite |
Pairing | MET 00570; MET 01182; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-23;Ferrosilite (mol%): 1-23 | |
Weathering | |
A/B | |
Fracturing | |
A | |
Macroscopic Description - Cecilia Satterwhite | |
90% black/brown fractured fusion crust covers the exterior of this ordinary chondrite. The interior is gray with heavy oxidation in areas and abundant gray and cream colored inclusions/chondrules present. | |
Thin Section Description (,2) - Linda Welzenbach, Tim McCoy | |
The section exhibits numerous small, well-defined chondrules (up to 1 mm) with fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is extremely abundant. The meteorite is highly weathered. Silicates are unequilibrated; olivines range from Fa1-23 and pyroxenes from Fs1-23. The meteorite is an H3 chondrite (estimated subtype 3.8). | |
Notes | |
Righter, K., Schutt, J., Lunning, N., Harvey, R., & Karner, J. (2021a) Identification and pairing reassessment of unequilibrated ordinary chondrites from four Antarctic dense collection areas. Meteoritics & Planetary Science 56, 1556-1578. |
Antarctic Meteorite Images for Sample MET 01182 | ||||
Lab Photo(s) : | ||||
References for Sample MET01182 | |
Righter, K., Schutt, J., Lunning, N., Harvey, R, and Karner, J., 2021, Identification and pairing reassessment of unequilibrated ordinary chondrites from four Antarctic dense collection areas. Meteoritics & Planetary Science, 56, 1556-1573, doi: 10.1111/maps.13707. | |
Vernazza, P., and M. Lockhart , B. Zanda, R. P. Binzel, T. Hiroi, F. E. DeMeo, M. Birlan, R. Hewins, L. Ricci, P. Barge, 2014, Multiple and fast: The accretion of ordinary chondrite parent bodies. . The Astrophysical Journal , 791, 120-131, https://doi.org/10.1088/0004-637X/791/2/120. |