Limestones

Limestone is a sedimentary rock mainly composed of calcium carbonate, often formed from the accumulated remains of marine organisms like clams and coral or from the gradual build-up of mineral-rich waters. It commonly appears in shades of white, gray, or beige and can be soft enough to carve or shape. Limestone is used in construction, such as for buildings and statues, and is also a key ingredient in making cement. Its formation reflects the Earth's history, capturing marine life and environmental conditions from millions of years ago.