Deep beneath Earth's surface and scattered across remote corners of our planet lie treasures so extraordinary that their very ...

There is a new, U.S.-based, environmentally friendly method for mining rare-earth elements used in consumer electronics, clean energy, defense and biomedical imaging. By using oxalic acid made by ...

Mining activity in the Santa Rita Mountains has existed for several hundred years, beginning with the Spanish in the 18th century at the silver and gold mines of Salero and Alto. Located 28 miles ...