Tesoros de la Tierra: las piedras preciosas

The video discusses the formation and rarity of emeralds, highlighting their composition with beryllium and the specific conditions required for their natural creation. It also covers the production of synthetic emeralds in labs. Additionally, the video explains the formation of sapphires and rubies from corundum, detailing how different elements affect their color. Despite not being as hard as diamonds, sapphires and rubies are strong and have practical applications, including in optical devices.

How do synthetic emeralds differ from natural emeralds?

What causes sapphires to appear in different colors?