Alexandrite

Alexandrite - Atlantis Institute Crystals Encyclopedia

Origin 

Alexandrite is an extremely rare gemstone initially discovered in the Sanarka River in Russia's southern Ural Mountains. The chemical composition exhibits Chrysoberyl's variants consisting of a chrysoberyl cat's eye and transparent Chrysoberyl, yet has chromium as an impurity along with iron and titanium, which accounts for its distinctive ability to change colour. The only type o

Emerald

Emerald - International Crystals Encyclopedia https://www.atlantisinstitute.org/

Origin - the place or situation from which something comes, the beginning of something’s existence, the point from which it starts out, the thin Calcite Calcite - International Crystals Encyclopedia https://www.atlantisinstitute.org/       Origin - the place or situation from which something comes, the beginning of something’s existence, the point from which it starts out, the thin Chalcedony Chalcedony - International Crystals Encyclopedia https://www.atlantisinstitute.org/       Origin - the place or situation from which something comes, the beginning of something’s existence, the point from which it starts out, the t Chrysoprase Chrysoprase - International Crystals Encyclopedia https://www.atlantisinstitute.org/       Origin - the place or situation from which something comes, the beginning of something’s existence, the point from which it starts out, the