Calcium carbonate is everywhere. From seashells to eggshells to antacid medicine, it is one of the most abundant minerals on our planet. But scientists still don’t agree on how it forms its many ...

When looking at calcite under a microscope, a scientist would immediately recognize the crystalline form of calcium carbonate by its rhombohedral appearance. That is, calcite is shaped like a ...

This release is available in German. It has a beautiful, but also an unpleasant side: crystallization determines the shape of precious stones, but also causes the lime scale in washing machines. How ...

This month we feature chemicals that have important applications in industry and the lab.—Ed. Calcium carbonate (CaCO 3) is a natural product found in many settings, including the minerals aragonite 1 ...