Limestone

Limestone

1. Uses

   • Toothpaste
     • High source of Ca
   • Bread
     • High source of Ca
   • Building material
     • Looks nice
   • Sculpting

2. Chemcial formula = CaCO3

   • Calcium Carbonate

3. The Limestone Cycle

   • Calcium Carbonate
     • + Heat
       • Calcium Oxide (CaO)
         • + Water
           • Calicum Hydroxide (Ca(OH)2)
             • + Carbon Dioxide

4. Used in the blast furnace