Selenite Crystal**Selenite crystals from Naica, Mexico** are among the most awe inspiring natural wonders on Earth. Found deep within the famous *Cave of the Crystals* in the Naica Mine, these towering formations can reach up to 12 meters (about 39 feet) in length and weigh several tons. Formed over hundreds of thousands of years in conditions of high heat, humidity, and mineral rich water, these crystals grew slowly, undisturbed in the Earths depths, resulting in