Identification of Coexisting Ortho- and Clinopyroxene by Electron Backscatter Diffraction in Chemically Homogenous "Enstatite" Grains in Almahata Sitta Ureilites
Abstract
We studied pyroxenes in two Almahata Sitta ureilites with a nominal chemical makeup of olivine + orthopyroxene + pigeonite. Structurally we found the "enstatite" composition to be both ortho- and clinopyroxene, whereas pigeonite is solely pigeonite.
- Publication:
-
52nd Lunar and Planetary Science Conference
- Pub Date:
- March 2021
- Bibcode:
- 2021LPI....52.2384R