BAKERSFIELD, Calif. (KERO) — This is the time of the year when many of us find our fridge filled with colorful, hard-boiled Easter eggs. Once you’ve peeled and eaten the egg, the painted eggshell ...
Scientists have discovered a spongy form of calcium carbonate (CaCO3), a material found in limestone, chalk, marble, and the shells of mussels and other shellfish. While most forms of calcium ...