Mineral: Galena (2018)
Rock: Greenhorn Limestone (2018)
Gemstone: Jelenite, a form of amber (2018)
Kansas has many fossil-bearing rocks at the surface, mostly limestone, sandstone, and shale. Most limestone was deposited in warm, shallow seas, such as the ones that covered Kansas intermittently during the Pennsylvanian, Permian, and Cretaceous periods. These warm, shallow seas were not only good for making limestone, but were also great for preserving the organisms that lived in these seas. The calcium carbonate ooze that collected on the sea floors made a perfect burial ground.
Please note that rock collecting locations are always changing so be sure to check with the site owner for the most current information before going.
Dig safe, never go underground, and make sure to get permission from the landowner to search for and collect rocks.