A high-pressure polymorph of olivine, found in Earth's mantle and shocked meteorites, can be blue or green. It symbolizes deep transformation and resilience under pressure.
Blue, Green, Colorless, (Rarely seen as distinct crystals)
Wadsleyite is classified as a sorosilicate mineral which typically crystallizes in the orthorhombic (horiuchi and sawamoto, 1981) system. Its chemical formula is Mg2SiO4. Common crystal habits include microcrystalline aggregates.