A new mineral from the oldest solar system solids in meteorites
Researchers have identified a new mineral in the oldest solar system solids from primitive meteorites. They've named it "rubinite" after Dr. Alan E. Rubin, a pioneering cosmochemist at University of California, Los Angeles. Rubinite was officially approved in March 2017 by the International Mineralogical Association.
|A new mineral has been named "rubinite" after Dr. Alan E. Rubin, a pioneering cosmochemist |
at University of California, Los Angeles [Credit: Tohoku University]
CAIs from two different carbonaceous chondrites were studied independently by Takashi Yoshizaki from Tohoku University and Chi Ma of the California Institute of Technology. They found tiny (< 10 µm in diameter) grains of a new garnet mineral rubinite (chemical formula: Ca3Ti3+2Si3O12). In both cases, the new minerals show high Ti3+ contents, indicating that they formed under highly reducing conditions. Further cosmochemical studies of rubinite will uncover new insights into nebular processes and evolution of the early solar system.
The findings are published in the Mineralogical Magazine.
Source: Tohoku University [April 18, 2017]