Newsletter |
42,1 |
Location |
Miller Range |
Field Number |
24080 |
Dimensions (cm) |
3.6 x 3.1 x 2.2 |
Weight (g) |
39.65 |
Original Classification |
LL4 Chondrite |
Fayalite (mol%): 28;Ferrosilite (mol%): 23 |
A/B |
A |
90% of the exterior is covered with a rough, black fusion crust that has some pitting. The exposed interior is a grey matrix with both light and dark, round inclusions (1-2mm) and some dark orange rust spots. |
The host of the meteorite is an unremarkable LL4 chondrite that is modestly weathered and shocked. Olivine compositions are Fa28, pyroxene compositions are Fs23. However, this meteorite contains a remarkable set of inclusions including a 3.5 x 2.4 mm single grain of plagioclase that exhibits numerous fractures and mosaicism. The composition is An67Or1. In addition, there is a ~3 mm diameter olivine-rich chondrule (?) with slightly heterogeneous compositions of Fa25-29 and a 2 mm diameter silicate glass particle with cruciform dendritic quench crystals. The variety of particles suggest that this rock may be an asteroidal regolith breccia. |