Eric Walker added Silicate perovskite - Wikipedia to Silicate perovskite and Bridgmanite

Eric Walker added Silicate perovskite - Wikipedia to Bridgmanite, and added Bridgmanite to Silicate perovskite and Magnesium

Eric Walker added Bridgmanite and Silicate perovskite - Wikipedia to Silicate perovskite, and added Silicate perovskite to Silicates

Eric Walker added a number of topics to Silicates, and added Silicates to Silicon and Minerals and gems