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Into the Crystal Caves

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What do you get when you take a super-saturated solution of Gypsum, apply even heat from a magma chamber, let it sit for 500,000 years, and then pump out all the water? Big crystals. Up to 36′ long and 14′ across and weighing 55 tons. The fragile, icy-looking selenite crystals belie the cave’s deadly heat. In the few steps from the tunnel to the opening of the cave, temperatures go from miserably warm to hotter than Hades — 150 degrees with 100-percent humidity, making it impossible for humans to survi

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