Newsletter |
29,2 |
Location |
LaPaz Ice Field |
Field Number |
16120 |
Dimensions (cm) |
1.4 x 1.2 x 0.8 |
Weight (g) |
2.25 |
Original Classification |
Eucrite (Brecciated) |
Ferrosilite (mol%): 21-64 |
A |
A |
75% of this achondrite's exterior surface has shiny black fusion crust with some white and light gray inclusions visible. The interior is a light, fine grained gray matrix with various sized white and light gray clasts. |
This meteorite is dominated by fine-grained (~200 micron average grain size) basaltic material which occurs as both the host and clasts. Occasional fine-grained clasts up to 1 mm and large individual pyroxene and plagioclase crystals up to 1.5 mm occur. Pyroxene exhibits a range of compositions from approximately Fs50-64Wo2-4 to Fs25Wo43, reflecting exsolution, and plagioclase is An79-93. The Fe/Mn ratio of the pyroxene is ~28. The meteorite is a brecciated eucrite. |