Naturally occurring means that people did not make it. Steel is not a mineral because it is an alloy produced by people. Inorganic means that the substance is not made by an organism. Wood and pearls are made by organisms and thus are not minerals.efinite chemical composition means that all occurrences of that mineral have a chemical composition that varies within a specific limited range. For example: the mineral halite (known as  rock salt  when it is mined) has a chemical composition of NaCl.
Cyanocobalamin injection is in a class of medications called vitamins. Because it is injected straight into the bloodstream, it can be used to supply vitamin B12 to people who cannot absorb this vitamin through the intestine.
January 12 2016 by Ray Sahelian, M.D. Methylcobalamin is one of the two coenzyme forms of vitamin B12 (cyanocobalamin). Vitamin B12 plays an important role in red blood cells, prevention and treatment of anemia, methylation reactions, and immune system regulation.