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
Yellow Calcite – Atlantis Institute Crystal EncyclopediaOriginCalcite is a carbonate mineral of secondary formation that is common to sedimentary rocks, including limestone, yet much of which is formed from the shells of long dead marine organisms. Calcite forms in two stages. The particles from amorphous calcium carbonate
Chalcedony
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