Name: LaPaz Icefield 031113 This is an OFFICIAL meteorite name. Abbreviation: LAP 031113 Observed fall: No Year found: 2003 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 2.2 g
Macroscopic Description: Cecilia Satterwhite
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.
Thin Section (,2) Description: Tim McCoy and Valerie Reynolds
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.
2.2 g
