Tesoros de la Tierra: el oro

Gold has been used as currency for centuries and occurs naturally in various forms, such as nuggets and gold dust. It is highly valued due to its non-reactive nature, beauty, and non-toxicity. Gold is the most malleable and ductile metal, making it ideal for jewelry and electronics. However, gold is now scarce, requiring extraction from the Earth's interior.

What are the different forms in which gold can be found in nature?

Why is gold considered extremely valuable compared to other metals?

What makes gold non-toxic to the human body?

How does gold's malleability and ductility contribute to its use in jewelry?

What challenges are associated with gold extraction today compared to the past?