This is an expensive operation and is likely to cease later this year. Giant Cave Crystals of the Naica Mine. The magma's heat worked like a hob on a cooker, maintaining this water at a simmering, steady 122 F (50 C), for half a million years. It lies almost 300 meters (900 feet) below the surface of the Earth and it contains the largest crystals known in the world, by far. The Cave of the Crystals is connected to the Naica Mine, 300m (980 ft.) below the ground in Naica, Chihuahua, Mexico. Cave of the Crystals or Giant Crystal Cave (Spanish: Cueva de los cristales) is a cave connected to the Naica Mine at a depth of 300 metres (980 ft), in Naica, Chihuahua, Mexico. The Crystal Cave of Giants was accidentally discovered in 2000 by miners working in the silver and lead mine at Naica, Mexico. The Naica Mine of the Mexican state of Chihuahua, is a working mine that is best known for its extraordinary selenite crystals. People discovered the crystals of selenite (gypsum), and it is big four feet, or 1.2 meters in diameter and fifty feet long, or fifteen meters. We have known for some time that crystals give off energy. Still a doubter? . Crystals Cave Mexico Tour The magnificent Giant Crystal Caves of Mexico gets connected to Naica Mine located in Chihuahua, Mexico. The breath-taking Chihuahua cave is the largest crystal one ever found. scrollbar-arrow-color:827339; The largest selenite Mexican Cave Crystals get found in the main chamber till now, some of which is 11 meters long, 4 meters in diameter and about 55 tons of weight. They had found the first of the truly awe-inpsiring caverns, the Crystals' Cave. Heat is a big part of why these crystals were able to grow to monstrous proportions. Their pumps extract 22,000 gallons of water per minute from the system. I have to admit a mix of feelings on this as I pray for responsibility in its preservation and this is an open pit mine that has been in existence for years. Juan and Pedro Sanchez had been given orders to drill a new tunnel into the previously unexplored depths of 984ft (300 meters). I even admit to having a piece of selenite I purchased while passing through Chihuahua that very possibly came from this magical place. He took with him plastic bags filled with fresh air, in a bid to stay alive long enough to steal some of the precious crystals. The largest crystals are over 11 meters long (36 feet) and weigh 55 tons. Naica is a lead, zinc and silver mine in which large voids have been found, containing crystals of selenite (gypsum) as large as 4 feet in diameter and 50 feet long. Caverns discovered during mining operations contain crystals of selenite (gypsum) as large as 4 feet (1.2 m) in diameter and 50 feet (15 m) long. This is the reason that visitors to the caves do so under strict supervision and with proper equipment. As groundwater seeped down, through the porous limestone bedrock, the caverns became flooded over time. It is a very hot place. Around 2-3 miles (3-5 km) beneath the caverns is a giant pool of magma. If seen on a sunny day, you will see shafts of light which pierce the calcite, quartz and fluorite inside, through carefully placed apertures. As is well known, the Earth is about 4.6 billion years old. Just days later, an iron door was erected in order to protect the entrance. Within days, an iron door was installed to protect the entrance. The miners had discovered the Cueva de los Crystals, or The Cave of Crystals. The spectacular Giant Crystal Cave is connected to the Naica Mine, located in Chihuahua, Mexico. This is the cavern that geologist, Juan Manuel García-Ruiz (University of Granada), in an interview with 'National Geographic', called 'the Sistine Chapel of crystals'. The Naica Mine of the Mexican state of Chihuahua, is a working mine that is best known for its extraordinary selenite crystals. It is also the basis of a number of scientific instrumental techniques with atomic resolution, the scanning probe microscopies such as STM, AFM, MTA, SNOM, etc., and everyday uses such as acting as the ignition source for cigarette lighters and push-start propane barbecues. Located below the Naica Mine, the cave produces jaw-dropping crystals that dwarf humans who enter the area. These core samples contain an organism that may or may not be a contributing factor to the growth of these amazing crystals. The translucent beams are as big as four feet across, with some of them as long as 36 feet and weighing as much as 55 tons. During the Mexican Revolution the mine was producing a great deal of wealth. Take a tour of the cave - watch the video. Size and quantity now crystals ) much larger than the others 2000, cave... 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