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.
The presence or absence of carbon is what differentiates organic nutrients from inorganic nutrients. Carbohydrates, lipids, proteins and vitamins have carbon in their structure, making them organic. Water and minerals do not, so they are inorganic. Nutrition 101: Science of Nutrition / Science Courses.
Inorganic nutrients. A number of inorganic elements (minerals) are essential for the growth of living things. Boron, for example, has been demonstrated to be required for the growth of manyâperhaps allâhigher plants but has not been implicated as an essential element in the nutrition of either microorganisms or animals.