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Catalog Data

Expedition:
Antarctic Search for Meteorites (ANSMET)  Search this
Place:
Antarctica
Collection Date:
1992
Notes:
# NASA data for EET 92103 Weathering: A/Be Fracturing: A/B Fa: 1-20 mol % Fs: 3 mol %
Sixty percent of the exterior of EET92103 is covered with dull black fusion crust. The fusion crust is fractured and contains small amounts of evaporite deposit. The interior material is fine-grained with numerous white inclusions that are sub-millimeter in size. Weathering is minimal.
The section shows small chondrules (up to 0.5 mm across) and occasional mineral grains in a semi-translucent dark brown to black matrix. Most of the chondrules and mineral grains consist of olivine; pyroxene is rare. Microprobe analyses show that most of the olivine is close to Mg₂SiO₄ in composition, with a few more iron-rich grains; one pyroxene grain, Fs₃, was analyzed. The matrix appears to consist largely of iron-rich serpentine. The meteorite is a C2 chondrite.
Record Last Modified:
21 Sep 2023
Specimen Count:
1
See more items in:
Mineral Sciences
Meteorites
Antarctic Polished Thin Section Collection
Digital Collection: Micrographs
Data Source:
NMNH - Mineral Sciences Dept.
GUID:
http://n2t.net/ark:/65665/3a0168d5c-0d74-4182-abc5-9fe612846d5b
EDAN-URL:
edanmdm:nmnhmineralsciences_1039402