Name: Mount Crean 01400 This is an OFFICIAL meteorite name. Abbreviation: CRE 01400 Observed fall: No Year found: 2001 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 141.3 g
Macroscopic Description: Kathleen McBride
Black, shiny fusion crust covers 95% of the exterior of this meteorite. One side has an iridescent sheen. The interior is composed of soft, tan colored matrix with numerous small clasts in a variety of colors, textures and shapes, including rounded white clasts, black clasts, shiny black and green crystalline inclusions.
Thin Section (, 2) Description: Tim McCoy
Plane-Polarized Light
Cross-Polarized Light
The section shows a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with clasts of basalt and orthopyroxenite ranging up to 5 mm. Large orthopyroxene grains are Fs21Wo2. Orthopyroxene (Fs52Wo5) and augite (Fs25Wo40) occur together in exsolved grains. Pyroxene has an Fe/Mn ratio of ~30. Plagioclase is An85-90Or0.5. The meteorite is a howardite.