Cobalt

Cobalt is the 27 element in the periodic table. It is a brittle, hard, silver-grey transition metal with magnetic properties similar to those of iron i.e. it is ferromagnetic. Cobalt is present in meteorites. It has a density of 8.9 gcm. Cobalt is also found  in earth's crust in combined state. 
Cobalt salts colour glass a beautiful deep blue colour. Cobalt compounds are important catalysts in a number of industrial processes. Cobalt's abundance in Earth's crust is 0.003%. Ore deposits of cobalt are found in Zaire, Zambia, Morocco and Canada.
==Biological Significance==
Cobalt is required in small amounts for life and is the only metal found in vitamins (cobalt is the critical component of vitamin B12). In human body, cobalt is present in liver and in some proteins. Cobalt is found in many food products such as, </span>Vitamin B12, clams, dairy products, kidney, liver, meats, oysters, some seaweed. Cobalt helps in protein formation and DNA regulation. 
Category:Element