(Si, latin Silicon)
Silicon is an essential trace mineral that is needed in very small amounts. This is one of the most abundant elements in the earth's crust.
The human body has about 7 grams of silicon, but its quantity is reduced by aging.
Silicon should not be confused with silicone. Silicone is the name for a group of materials containing silicon, oxygen and other substances, which are used for making implants, medical vessels and parts of various medical devices.