Naica Crystal Caves

Where are the Naica Crystal Caves located?

Where are the largest natural crystals known to man located?

What is the approximate length of one of the clear selenite crystals mentioned?

How much does one of the clear selenite crystals weigh?

Where have the largest natural crystals on Earth been discovered?

What mineral are the largest natural crystals composed of?

What is the name of the chamber holding the large crystals in the Naica Mine?

How deep is the Crystal Cave of Giants located in the Naica Mine?

In which year did Eloy and Javier Delgado discover the world's largest crystals?

Reflect means_________.

What is the temperature inside the cave mentioned in the text?

How long can a human function in the environment described before severe loss of mental functions occurs?

What does the mining company plan to do before opening the caves to the public?

How old are the limestone massifs mentioned in the text?

What elements were deposited by the thermal waters as they cooled?

What was released when the limestone walls dissolved?

What did the calcium combine with to form crystals?

Which part of the Naica Cave do you find the most fascinating?