Sample Petrographic Description
Sample Number | MET 00435 |
Newsletter | 24,2 |
Location | Meteorite Hills |
Field Number | 13791 |
Dimensions (cm) | 2.0 x 1.5 x 0.5 |
Weight (g) | 2.39 |
Original Classification | CM2 Chondrite |
Pairing | MET 00431; MET 001012; MET 00433; MET 00434; MET 00435; MET 00630; MET 00632; MET 00633; MET 00635; MET 00639; MET 00781; MET 00810; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-21;Ferrosilite (mol%): 0-2 | |
Weathering | |
Be | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
The exterior of these meteorites is black. The interior is platy and black in color with evaporites and tiny, round, white chondrules. | |
Thin Section Description (,2) - Tim McCoy, Linda Welzenbach | |
The sections consist of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix. Olivine compositions are Fa0-31, with most less than Fa2, and orthopyroxene is Fs0-7. In thin sections, these meteorites exhibit fracturing and flattening of chondrules along a preferred orientation. The matrix is an iron-rich serpentine which occurs in spheres of ~200 microns in diameter, with each sphere exhibiting a fibrous internal texture. Parting of the meteorites occurs between these spheres. The meteorites are CM2 chondrites |
Antarctic Meteorite Images for Sample MET 00435 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MET 00435 | ||||
Thin Section Photo(s) : | ||||