Hammerhead Calcite on Limestone | Missouri plate set in a simple metal

set in a simple metal bezel that keeps the focus on the stone itself

used as an iron ore

creating a hollow center

The Earth's eighth most abundant mineral

Hammerhead Calcite on Limestone | Missouri plate set in a simple metalThis striking specimen features distinctive hammerhead formations of calcite perched on a natural limestone matrix from Coldwater, Missouri. Formed from calcium carbonate (CaCO), calcite is one of the most abundant and versatile minerals on Earth, often crystallizing in a wide variety of habits. This particular growth pattern highlights the dynamic conditions of its formation, where space, pressure, and mineral rich fluids came together to create