A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earth's crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Symbol Si. Atomic weight 28. Called also silicium.
a mineral and element necessary for bodily functions and growth. Helps build strong bones, teeth and nails, and stimulates calcium absorption. No RDA for silicon has been established. The compound of silicon and oxygen is silica -- see silica. No RDA has been established. This nutrient is essential for some higher animals but has not been proven to be necessary for humans. You can find more information and obtain silicon in our BioArmor(tm) and Bone Essence(tm).