Sample Petrographic Description
Sample Number | MAC 02556 |
Newsletter | 27,3 |
Location | MacAlpine Hills |
Field Number | 14491 |
Dimensions (cm) | 0.75 x 1.00 x 0.5 |
Weight (g) | 1.41 |
Original Classification | E3 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 0-1 | |
Weathering | |
C | |
Fracturing | |
A | |
Macroscopic Description - Kathleen McBride | |
The entire exterior is covered with shiny brown/black fusion crust. The interior has a rusty, crystalline surface texture with a high metal content. | |
Thin Section Description (,2) - Tim McCoy, Cari Corrigan | |
The section shows an aggregate of small chondrules (up to 1 mm), abundant chondrule fragments, and pyroxene grains in a heavily weathered matrix. Several chondrules contain olivine. Microprobe analyses show the, orthopyroxene is Fs0-1. The meteorite is an E3 chondrite. The complete weathering of metal makes the subtype (EH vs. EL) uncertain. |
Antarctic Meteorite Images for Sample MAC 02556 | ||||
Lab Photo(s) : | ||||