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.
Salt (Sodium Chloride, NaCl) is an inorganic compound. The classification of an organic compound is that it is a molecule that contains a carbon atom. Everything else can be â¦ considered inorganic. Some molecules that contain carbon are also inorganic such as carbon dioxide or calcium carbonate. + 23 others found this useful.