Epsilon-Mg2SiO4, a new spinelloid in a shocked meteorite highlighting diffusionless phase transitions among olivine polymorphs


Naotaka Tomioka, Kochi Institute for Core Sample Research, JAMSTEC, Nankoku, Japan, Takuo Okuchi, Institute for Planetary Materials, Okayama University, Misasa, Tottori, Japan, Riho Tani, Hiroshima University, Higashi-Hiroshima, Japan and Yu Kodama, Marine Works Japan, Yokosuka, Japan