Stringer ore | AMNH https://www.amnh.org/exhibitions/permanent/planet-earth/why-is-the-earth-habitable/where-do-the-earth-s-riches-come-from/kidd-creek-mine/stringer-ore
This rock contains brassy veins of chalcopyrite (the yellow copper-iron sulfide mineral) in dark metamorphosed volcanic rocks.
plates move past each other Anza-Borrego Atlantis