In Mexico, there is a mysterious cave filled with unusual giant crystal columns. The landscape inside the cave is incredibly beautiful, but it can kill people in just a few minutes. The giant crystal cave, or the giant crystal cave, is a cave connected to the Naica Mine at a depth of 300 meters in Naica, Chihuahua, Mexico. The giant crystal cave was discovered in 2000. Brothers Pedro and Juan Sanchez - two miners became the first to see the Selenite columns in this cave.
The giant crystal cave is a place with an extremely high air temperature of up to 47.1⁰C and the humidity is also close to 100%. It is too hot and humid, so if a tourist stays too long, there is a risk of liquid condensation inside their lungs, leading to death in a few minutes. Despite the danger, scientists use specialized clothing and equipment to enter the cave and try to determine exactly how the Selenite columns are formed.
To survive and work in extreme temperatures and humidity, they developed their own cooling suits and breathing systems. They carry cooling tubes placed all over their bodies and connected to a backpack weighing about 20 kg filled with cold water and ice. The cooling system from the melted ice helps them stay in the crystal cave for about half an hour.
Researchers believe that the largest crystal column inside the cave has developed for over 500,000 years due to such "terrible" temperatures and humidity. Also, the acidic air and lack of natural light as well as groundwater containing calcium sulfate flowing into the caves and heated from magma below help form combinations of gypsum crystals - giant crystals.
