Oregon has two official state rocks: sunstones (pictured) are the state gemstones, and thunder eggs are the state rock. In fact, Oregon was the very first state to have an official gemstone, beating out California by two weeks. These beautiful yellowish feldspars, often with copper inclusions, are only found in a couple places in the entire world: Southern Norway, Sweden, and a handful of locations in the United States including near Plush, Oregon. Vikings used these gems to locate the sun for navigation.
Deck & Lock Rocks 