One of the most common chemicals connected to calcium is called “carbonate”, and together they make calcium carbonate. Calcium carbonate is in eggshells, seashells, a rock called marble, and in ...

Numerous marine organisms used the dissolved calcium carbonate in the seawater to form internal skeletons and shells. Many of the rock layers contain fossils of these organisms. Fossils formed when an ...

Cement production is the second-largest industrial contributor to global greenhouse gas emissions, but its carbon footprint ...

Apart blue, green, red and yellow, any other fireworks color can be obtained by a mineral mix. For example, purple can be ...

A natural opening in the rock which is large enough to be entered ... of water during periods of heavy rainfall. This is a calcium carbonate deposit like an icicle formed in caves by chemical ...