Rarest And Most Valuable Opals In The World Opal is composed of small beads of silica â alpha-cristobalite â low temperature, but tightly closed in a waterproof casing. Between these âbeadsâ have cavities that contain a small amount of water.
Inorganic nutrients that facilitate growth and development in organisms include phosphorous, calcium, nitrogen, iron and fluorine. There are many different kinds of inorganic nutrients, and they are all characterized by their lack of carbon-to-carbon bonds.
Your body requires six essential nutrients: fat, proteins, carbohydrates, vitamins, minerals and water; however, it can't produce these nutrients independently, so you have to consume them through your diet. Nutrient Classifications. The macronutrients -- fats, proteins and carbs -- provide the majority of our energy. Vitamins and minerals, which include iron and calcium, are considered micronutrients because we require them in much smaller quantities. A varied diet is the best way to get all essential nutrients.