Name: LaPaz Icefield 04841 This is an OFFICIAL meteorite name. Abbreviation: LAP 04841 Observed fall: No Year found: 2004 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 56 g
Macroscopic Description: Kathleen McBride Dull, black fusion crust covers over 50% of the exterior. Some surfaces have shiny areas. The interior is a pinkish tan and white matrix with black glass filled veins.
Thin Section (,2) Description: Valerie Reynolds, Tim McCoy and Linda Welzenbach The meteorite is almost certainly paired with the LAP 02205 pairing group. LAP 02205 was described as follows: The section consists of coarse-grained unbrecciated basalt with elongate pyroxene (up to 0.5 mm) and plagioclase laths (up to 1 mm) (~60:40 px:plag), rare phenocrysts of olivine (up to 1 mm) and interstitial oxides and late-stage mesostasis. Shock effects include undulatory extinction in pyroxene and shock melt veins and pockets. Microprobe analyses reveal pigeonite to augite of Fs26-80Wo14-36, plagioclase is An85-90Or0-1 and a single olivine phenocryst is Fa50. The Fe/Mn ratio in the pyroxenes averages ~60. The meteorite is a lunar olivine-bearing basalt.
56 g
