Cave of the Crystals or Giant Crystal Cave is a cave connected to the Naica Mine 300 metres ft) below the surface, in Naica, Chihuahua, Mexico. The main chamber contains giant selenite crystals (gypsum, some of the largest natural crystals ever found.
Mexico’s Cave of the Crystals was discovered in Stable temperatures, mineral-rich water, and being almost feet underground have allowed these crystals to grow as large as 39 feet and weigh as much as 55 tons
I'd only go to Australia to see this. One of the world’s largest amethyst geodes, the Empress of Uruguay, is located in Australia’s Crystal Caves. It stands an alarming eleven feet tall and is filled with magnificent, deep violet crystals.
Great demonstration of how pesticides and other chemicals can easily be absorbed by vegetables.Toddler Science: Celery Experiment, Learn about Plants and How They Absorb Water in This Science Project for Kids
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