Sample Petrographic Description
Sample Number | PRE 17275 |
Newsletter | 44,1 |
Location | Mt. Prestrud |
Field Number | 24747 |
Dimensions (cm) | 6.8 x 5.7 x 3.5 |
Weight (g) | 197.48 |
Original Classification | H6 Chondrite (Anomalous) |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 16;Ferrosilite (mol%): 14 | |
Weathering | |
B | |
Fracturing | |
A | |
Macroscopic Description - Kellye Pando | |
45% of exterior is covered with possible fusion crust that looks like brown varnish with orange rust spots, fractures and some pitting. Exposed surfaces are coated with a splotchy red-orange varnish that is pitted. Fresh interior is made up of areas of differing matrix colors, very dark brown, black and dark orange with metal inclusions throughout. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The section exhibits a few poorly defined chondrules (up to 1 mm) in a matrix of coarse metal and sulfide. Olivine is Fa16 and pyroxenes are Fs14. The meteorite is moderately weathered. The meteorite is a low FeO chondrite of type 6 (Russell et al. MAPS 1998). The meteorite is similar in mineral composition to Willaroy and Suwahib (Buwah) and may be represent either the tail end of the H chondrites or a lower FeO parent body. |
Antarctic Meteorite Images for Sample PRE 17275 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample PRE 17275 | ||||
Thin Section Photo(s) : | ||||