Sample Petrographic Description
Sample Number | QUE 99113 |
Newsletter | 24,2 |
Location | Queen Alexandra Range |
Field Number | 12111 |
Dimensions (cm) | 1.5 x 1.0 x 0.5 |
Weight (g) | 0.58 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 2-13;Ferrosilite (mol%): 2-12 | |
Weathering | |
A | |
Fracturing | |
A/B | |
Macroscopic Description - Kathleen McBride | |
Dull, black fusion crust covers 20% of the exterior of this carbonaceous chondrite. The interior is a dark gray to black matrix with millimeter sized white and light gray inclusions. | |
Thin Section Description (,3) - Tim McCoy, Linda Welzenbach | |
The section measures 8 x 5 mm. Vesicular fusion crust comprises ~80% of the section. Unaltered material is relatively rare. A few large chondrules are present at one end, although no unaltered matrix may remain. Olivine compositions are Fa3-13, with most less than Fa, and orthopyroxene is Fs2-13. The meteorite is a CM2 chondrite. It is possible that it is spalled off of a larger mass in flight, explaining the abundance of fusion crust. |
Antarctic Meteorite Images for Sample QUE 99113 | ||||
Thin Section Photo(s) : | ||||