Name: Mount Prestrud 95412 This is an OFFICIAL meteorite name. Abbreviation: PRE 95412 Observed fall: No Year found: 1995 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 14.6 g
Macroscopic Description: Kathleen McBride The surface of all three of these meteorites have black fusion crust with polygonal fractures. The surfaces are pitted and vesicular. The interior is medium gray with small light clasts and chondrules visible.
Thin Section (PRE95410,2; PRE95411,2; PRE95412,2) Description: Brian Mason The sections are so similar that a single description suffices; the meteorites are certainly paired. The sections show polycrystalline silicates clasts (up to 3 mm across), chondrules (up to 1.2 mm across) and mineral grains in a finely granular gray matrix. Nickel-iron and sulfide are present in accessory amounts. The meteorite is essentially unweathered. Microprobe analyses show olivine and pyroxene of variable composition. Olivine compositions show a prominent peak at Fa39, with a few more magnesian grains., Pyroxene is present in minor amounts, both hypersthene (Wo4Fs29) and diopside (Wo45Fs15). The meteorite is an R chondrite, very similar to PCA91002 (Meteoritics, 29, p.255, 1994).
14.6 g
