Julius Popper, a commercial exploiter of this substance, led the Selk’nam genocide in Tierra del Fuego. In a ritual of the Muisca people, a new king would be covered in this substance before diving into Lake Guatavita. The name ‘Cibola’ was attached to a province reportedly containing seven cities named for this substance. (10[1])Walter Raleigh made two expeditions to Guyana in search of a place alternatively named for this substance. This substance names the law that abolished slavery in Brazil. The myth of El Dorado sparked quests for cities rich in this substance. For 10 points, what precious metal sparked namesake “rushes” in places like California? ■END■