What is the state rock of Oklahoma?

The state rock of Oklahoma is the red sandstone. Red sandstone is abundant in the state’s natural landscape, particularly in areas like the Ouachita Mountains and the Arbuckle Mountains. This rock is often used in construction and landscaping due to its durability and distinctive reddish hue. The red color of the sandstone is due to the iron oxide in the rock, which gives it a warm, earthy appearance. The red sandstone was designated as the state rock in 1978, symbolizing the state’s rich geological resources and the significance of natural stone in its history.