Naturally formed stone concretions.
Lake Superior, Wabasha, Minnesota, and Cook Inlet, Alaska
Beneath the earth, a stone grows from a seed.
A shard of crystal or the shed tooth of an extinct beast becomes the heart of a new stone. Wandering molecules of minerals in slow underground precipitation find their home on the surface of this kernel, blanketing it like layers of heavy, wet snow.
Growing in the dark for years, the stone is shaped by the spaces in the sediment around it, sculpted for generations by the earth and rocks. But it’s not until you came, and lifted it from the beach, or pulled it from a cliff, or saw it at the Science Museum that the sculpture could have a name. The forces of the Earth have made this rock within a rock, this concretion, but what do you see?