How did the crystals in the cave in Mexico get so big?



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    The cystals in Chihuahua Cave have grown so large (up to 4 feet in diameter and 50 feet long) due to a magma chamber below the cave. The heat from the magma travels up faults, causing mineral-rich superheated fluids to flow into the cave, then cool due to the cave’s ventilation. When the fluids cool, they deposit their minerals, slowly building these crystals into the massive objects they are today.

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