Characteristic:
1.It has
dense, crystalline granular, biological debris and other structures. It is
brittle, and chemically reacts with dilute hydrochloric acid to produce
bubbles.
2.It
has good processability, polishability and good cementing properties. It is
insoluble in water and easily soluble in saturated sulfuric acid. It can react
with various strong acids to form corresponding calcium salts and release CO2.