The Allegory of the Cave is a story from Book VII in the Greek philosopher Plato's masterpiece "The Republic," written in B.C.E. Also called the Giant Crystal Cave, this surreal cavern features amongst the famous caves of the world for its giant selenite crystal formations. Its floor is covered in crystalline, perfectly faceted blocks. The largest crystal of Giant Crystal Cave is said to reach a length of 12 metres (39 feet), a diameter of 4 metres (13 feet) and is believed to weigh approximately 50 tonnes (55 tons). However, this out-of-the-world sight can be witnessed only with the assistance of specialists, as climbing the huge crystals is not an easy task. The Cave of Crystals is a horseshoe-shaped cavity in limestone rock about 30 feet (10 meters) wide and 90 feet (30 meters) long. Mexico's Cave of Giant Crystals. Some of these are infilled with color—others are not. The viral communities in the Cave of Crystals are actually inside the bacteria or archaea. The cave spaces range widely in size and ease of access. 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. Yet, as Cave of the Crystals demonstrates, microbes can survive extreme conditions, such as in desert regions or deep underwater, or even encased in rocks and minerals. It is probably Plato's best-known story, and its placement in "The Republic" is significant. What is an astrobiologist? The Naica Mine of Chihuahua, Mexico, is a working mine that is known for its extraordinary crystals. Hidden within caves we find: Chambers Tablets - Artifacts - Scrolls - Texts - Crystals The word 'cave' is sometimes a metaphor for the mind, hidden within is sacred knowledge that yearns to be discovered. Scientists and researchers have been actively working in the Cave of Crystals since 2001, and continued to do so until its confirmed flooding in 2017. 517. Other “rooms” and “halls” are extraordinarily narrow and tall. Its floor is covered in crystalline, perfectly faceted blocks. Crystal Cave Mexico or a Giant Mexican Crystal Cave of swords attached to the Naica Mine, at a depth of 300 meters (980 feet) in Naica, Chihuahua, Mexico.. Why would astrobiologists be interested in tiny cave-dwellers on Earth? In other portions of the Lascaux cave, artists carved lines into the soft calcite surface. The famous Hall of Bulls (below) is large enough to hold some fifty people. Why are the selenite crystals important? The Cave of Crystals is a horseshoe-shaped cavity in limestone rock about 30 feet (10 meters) wide and 90 feet (30 meters) long. It is also described as Spanish: Cueva de Los Cristales, So we Discuss in detail about Mexican cave crystals.. The scientist who made the announcement about the microbes in the Cave of Crystals is the director of NASA’s Astrobiology Institute. Deadly And Giant Crystal Cave Mexico. 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