Sample Petrographic Description
Sample Number | LAP 04754 |
Newsletter | 31,1 |
Location | LaPaz Ice Field |
Field Number | 17602 |
Dimensions (cm) | 2.25 x 1.5 x 2.0 |
Weight (g) | 7.23 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-5 | |
Weathering | |
C | |
Fracturing | |
A | |
Macroscopic Description - Kathleen McBride | |
30% of the exterior has shiny purple-black fusion crust with black spots. The interior is a black matrix with tiny white chondrules/inclusions. | |
Thin Section Description (,2) - Tim McCoy | |
The section consists of abundant small, light to moderately-altered chondrules (up to 1 mm), chondrule fragments, mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-5. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite. |
Antarctic Meteorite Images for Sample LAP 04754 | ||||
Thin Section Photo(s) : | ||||