These Septarian Nodules were formed as a ball of clay on the ocean floor nearly 55 million years ago and, over time, were filled in with a white to yellow calcite, giving the stone its unique dark ...

The stone has been a popular architectural material in the U.S. since at least the late 1800s, used for mosaics, carvings, plinths, columns, wall casings, and bookends and other home décor.

On March 16 th, Governor Spencer Cox signed off on House Bill 188 which recognizes honeycomb calcite. The semi-precious stone was first discovered by Floyd Anderson in 1995.