Name: Elephant Moraine 92105 This is an OFFICIAL meteorite name. Abbreviation: EET 92105 Observed fall: No Year found: 1992 Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)] Mass: 18.2 g
Sample No.: EET92105 Location: Elephant Moraine Dimensions (cm): 3.4 x 2.4 x 1.5 Weight (g): 18.2 Meteorite Type: CR2 chondrite
Macroscopic Description: Robbie Marlow This meteorite has dull dark brown fusion crust covering 98% of its exterior. The interior matrix is black and fine-grained. Numerous white and orange inclusions that range in size from sub-millimeter to approximately 3 mm were noted.
Thin Section (,3) Description: Brian Mason The section shows a close-packed aggregate of chondrules and chondrule fragments, up to 2.9 mm across, in a black matrix which contains 10-20% nickel-iron as globules and rimming chondrules. Fine-grained disseminated troilite is present in small amounts. Some weathering is indicated by limonitic staining in some chondrules. Most chondrules consist of granular or porphyritic olivine or olivine-pyroxene; some have intergranular pale gray glass. Most of the mineral grains are close to Mg2SiO4 and MgSiO3 in composition; olivine, Fa1-3; pyroxene, Fs1-3. The meteorite is a C2 chondrite of the Renazzo subgroup; it is confidently paired with the EET87711 group.