Have you ever heard the word "Pyrites" before? I didn't know about it, but iron pyrites are minerals which are composed of iron and sulfur. The color of the mineral is cold and they have been said "fool's gold". However, they are not "fool's gold" at all. The latest research clarified that the minerals contain lithium. Lithium is well-known as very valuable metals. It is essential to fabricate batteries and the batteries are used for automobiles, computers and so on. The demand has been drastically increasing due to the spread of electric cars. The pyrites researched this time are stones that are made around mid-Devonian period, which means about 0.4 billion years ago, in Appalachia valley, America. The research team found lithium out of these pyrite minerals. It is said that the pyrites might be the opening of a new gold rush because the valley can be a mining place for the pyrites if lithium is possible to be mined economically. On the other hand, the research came out that the pyrites contains real golds as well in 2021. Hence, there might be celebrities in the future thanks to successful minding tons of minerals.