Name: Elephant Moraine 92128 This is an OFFICIAL meteorite name. Abbreviation: EET 92128 Observed fall: No Year found: 1992 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 1.2 g
Sample No.: EET92128 Location: Elephant Moraine Dimensions (cm): 1.3 x 0.6 x 0.6 Weight (g): 1.2 Meteorite Type: CV3 chondrite
Macroscopic Description: Cecilia Satterwhite Shiny black and frothy fusion crust covers approximately half of this meteorite. The interior matrix is brown/black; metal is present. Oxidation is evident in areas. Minor amounts of evaporite deposit were noted.
Thin Section (,2) Description: Brian Mason The section shows a variety of chondrules and chondrule fragments (up to 1.2 mm across), and one large clast of granular olivine and pyroxene (maximum dimension 3.6 mm) in a black matrix which contains small amounts of nickel-iron and troilite, mostly on chondrule rims. Part of the section is rimmed by fusion crust. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa7-15; pyroxene, Fs3-21. In the clast, olivine composition is Fa16-18, pyroxene Wo10Fs15. The matrix appears to consist largely of fine-grained iron-rich olivine admixed with carbonaceous matter. The meteorite is tentatively classified as a C3 chondrite of the Vigarano subtype.