Calcium carbonate
Calcium carbonate is one of the main components of Portland cement, and therefore of concrete, the most common building material on Earth.
Calcium carbonate is a chemical compound, CaCO3. It has been identified from orbit on Mars.
Calcium carbonate is one of the main components of Portland cement, and therefore of concrete, the most common building material on Earth.
Calcium carbonate is a chemical compound, CaCO3. It has been identified from orbit on Mars.