SILICON  (Si) 28.08 Atomic Weight

(Essential Element)

Silicon is essential to plant and animal life.  It does not occur free in nature, but in its compounds, it constitutes 27.7% of the earth’s crust, the second most abundant element only surpassed by Oxygen.  It is found in practically all rocks, sands, sands, soils, and other mineral elements.  Its compounds also occur in all natural waters; in the atmosphere; in many plant species; and in the skeletons, tissues, and fluids of many animals.

In plants, Silicon bonds to cell walls allowing greater elasticity.  It increases tensile strength of stems and leaves.  Helps plant tissue provide a physical barrier to infestation by disease and insects.