Coral Fossil Quartz Druzy Flint Stone From Central Missouri USA 18.8 Gr 1.jpg
Rugose Coral, with Druzy Quartz
Mississippian Period (358.9 to 323.2 million years ago)
This is an interesting specimen with druzy quartz on the bottom of the ancient fossil coral. In the central and southern Missouri region mostly is micro-quartz filled flint and chert stones laying about and this coral is similar stone. This stone is 34mm by 22mm by 20mm.
Subclass: †Rugosa (Milne-Edwards and Haime, 1850)