It normally occurs in the formation of bone, but calcium can be deposited abnormally in soft tissue,[1][2] causing it to harden.
[3] Calcification may also refer to the processes of normal mineral deposition in biological systems, such as the formation of stromatolites or mollusc shells (see Biomineralization).
In the pulpal structure of a tooth, calcification often presents asymptomatically, and is diagnosed as an incidental finding during radiographic interpretation.
Vascular calcification is the deposition of mineral in the form of calcium phosphate salts in the smooth muscle-rich medial layer of large arteries including the aorta.
[citation needed] Intake of too much vitamin D would be evident by anorexia, loss of appetite, or soft tissue calcification.