Calcite as a mineral, is a white or colorless mineral consisting of calcium carbonate. It is a major constituent of sedimentary rocks such as limestone, marble, and chalk. It can occur in crystalline form (as in Iceland spar), and may be deposited in caves to form stalactites and stalagmites.
Calcite slabs are not new to the stone industry, but lately have become a focus of many stone suppliers. As the demand for white colored stones has increased, the amount of calcite type stones has increased. Calcites are typically white and translucent and can have soft veins of light blue, gray, green and other light colors. Because of their grain structure and quartz like appearance, they can sometimes be mistaken as quartz. Although they look like quartz, they are very different in terms of durability. Calcite is soft and can scratch, etch and stain just like marble can. Make sure you fully understand the pros and cons of calcite before selecting one as a kitchen countertop. Calcites are generally better suited for a bathroom environment.