geog1011_m2_5
Figure 2-5. Coral (left) and sea urchin (right) are just two of the many types of organisms that make calcite using ions in sea water. © Steven Earle. Used with permission.
Figure 2-5. Coral (left) and sea urchin (right) are just two of the many types of organisms that make calcite using ions in sea water. © Steven Earle. Used with permission.