Silica is the most common mineral present on the earth's surface. Silica is found in nature as sand and quartz crystal. Quartz is found almost everywhere and is present as one of the components of most of the rock types. In fact it is the primary mineral with more availability than other minerals. Even in the terms of colours, varieties and forms, availability of quartz crystal is most multifarious. In fact the varieties of quartz crystal are so widespread that it is hard to find two similar samples because of its broad categories.

Silicon is present in animal and human bodies and also in the plants and vegetables. Silicon molecules are present in our body tissues like connective tissues and nails and provide them all the strength and stability that is required for their well being. It is present in bone, blood vessels, cartilages and tendons. It is essential for the formation of our bones and strength of blood vessels, cartilages and tendons, etc. This mineral exhibits approx. 0.05% of our body weight.

Dr. Elson M. Hass M.D., in his book, 'Staying Healthy with Nutrition', suggests it to be an essential nutrient for the growth of our body. He says that poor bone development and retarded growth in rats and more atherosclerotic arterial plaques were found in rabbits when they were fed with silicon-deficient diet. So it has been proved that our body needs this mineral for its well being. This mineral is widely available in food. It is present in plant fibers, and found in oats, rice, wheat- husk, sugar beet, lettuce, cucumber, strawberries, avocado and many other green vegetables and fruits.

But this mineral is present in such low amount that it gets easily lost in the processing of food. Sometimes even soil becomes deficient in minerals due to the over cultivation on the land. Thus we need supplements to provide us with proper amounts of this mineral. There are numerous mineral supplements available in the market. You can easily buy them anywhere. They are available both in the form of pills and tonics.