EXTRACTION OF METALS
OCCURRENCE OF METALS.
The metals which are most in reactivity are extracted from the sea, for example; calcium is extracted from limestone, chalk and marble in the sea.
Metals of medium reactivity are found in the form of oxides and sulphides
Example; Aluminium, Zinc, Iron and Tin
Least reactive metals are found as free uncombined elements, for example; Gold, Silver etc.
Main natural/forms of metals.
Metals in order of reactivity Main form in nature
Potassium potassiumchloride
Sodium sodium chloride
Calcium calcium carbonate which is limestone / chalk
Aluminium aluminium oxide
Zinc zinc sulphide
Iron iron oxide or iron sulphide
Tin tin oxide
Lead lead sulphide
Copper copper pyrites (CuFeS2)
Mercury mercury sulphide
Silver silver sulphide
Gold occurs as a free element
Platinum occurs as a fee element
LOCATION OF METALS IN TANZANIA
Tanzania is a country of mineral rich land.A varieties of metals investigated to exist in many parts of Tanzania. A mass medias of Tanzania are very familiar to some important places like Nyamongo, Buzwagi, Bulyanhulu etc. Those places are very important for the economical fluctuation and personal financial enhancement. Many people migrate there, as a means solving their way of life.