Tag Archives: Silicate Minerals

Green sand, composed of olivine mineral grains, found on a volcanic beach on the island of Hawaii.
1789: Olivine – The Earth’s Mantle’s Gem

Olivine, an abundant magnesium-iron silicate in the Earth's mantle, is key to understanding planetary structures. Its polymorphism and occurrence in volcanic areas, as well as in lunar, Martian, and meteoritic rocks, make it integral to [...]