hornina

Hornina is a type of sedimentary rock that is characterized by its distinctive horn-like structures, which are formed by the fossilization of ancient coral reefs. These structures are composed of calcium carbonate and are often found in layers, with each layer representing a different stage in the life cycle of the coral. Hornina is typically light in color, ranging from white to light brown, and has a fine-grained texture. It is often used as a building material due to its durability and resistance to weathering. Hornina is found in various parts of the world, including the Caribbean, the Pacific, and the Indian Ocean. It is an important geological formation that provides valuable insights into the history of ancient coral reefs and the environments in which they thrived.