Minnesota Rocks & Minerals Field Guide Buttons & Pins shaped by natural mineral formation

shaped by natural mineral formation processes over time

This sterling silver necklace features polished chalcopyrite with a golden metallic sheen

Machine washable for easy care and long-term use

This pin features the original eight-stripe rainbow flag designed by Gilbert Baker in 1978

Minnesota Rocks & Minerals Field Guide Buttons & Pins shaped by natural mineral formationMinnesota Rocks & Minerals Field Guide is a comprehensive reference designed to help you identify and learn about the diverse geology of Minnesota, from common rocks to rare mineral finds. Created for both beginners and experienced collectors, this guide covers 90 Minnesota rocks and minerals, including agates, iron ore, fossils, and gold. With clear organization and detailed photography, it makes field identification practical and approachable