Crater of Diamonds State Park
- Arkansas
photo: HAL333 CC BY-SA 4.0
Crater of Diamonds State Park in Murfreesboro, Arkansas, is a unique 37-acre site, the world's only public diamond-producing area. Visitors can search for diamonds and other precious gemstones. Its geological history began around 100 million years ago as an ancient sea bed with volcanic activity. Magma carried diamonds from the Earth's mantle to the surface through underground pipes, forming a distinctive "lamproite pipe." Erosion exposed the pipe, creating the park's namesake crater. In 1906, the first diamond discovery triggered a rush, and many significant diamonds have since been found. The park's geological diversity attracts both gem enthusiasts and scientists.