The pursuit of the world’s most important rocks is a story of Treasure and Technology, where the minerals found deep in the ground are used to build the phones and computers that store all our data. These special minerals are called rare earth elements, and they are like the Secret Ingredients needed to make powerful magnets and batteries that do not overheat when they are working hard. Even though they are called “rare,” they are actually found in many places, but it is very difficult and messy to pull them out of the dirt and separate them from each other. Because our world needs so much energy to keep the internet running, the countries that have the most of these minerals have become the most powerful players on the planet. China is currently the world leader because it has the most minerals and the best factories to clean them, while other countries like Vietnam, Brazil, Russia, and India are also sitting on huge piles of these valuable rocks. Continue reading →