Newsletter |
26,2 |
Location |
MacAlpine Hills |
Field Number |
14103 |
Dimensions (cm) |
3.5 x 2.5 x 2.25 |
Weight (g) |
19.27 |
Original Classification |
Howardite |
Ferrosilite (mol%): 26-40 |
B |
B |
Shiny, black fusion crust covers ~50% of the exterior. Some areas actually look like they are wet. Interior is a concrete gray matrix with numerous clasts of various shapes, sizes and colors. |
The section shows a groundmass of comminuted, compositionally zoned pyroxene (up to 3 mm) and plagioclase with fine- to coarse-grained basaltic clasts ranging up to 1 mm. Most of the pyroxene is orthopyroxene with compositions ranging from Fs26-40Wo2-3 (Fe/Mn ~ 30), a single augite of Fs19Wo43 and plagioclase An74-94. The meteorite is a howardite. |