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 also sometimes used to treat methylmalonic aciduria (an inherited disease in which the body cannot break down protein) and is sometimes given to unborn babies to prevent methylmalonic aciduria after birth.
Hydroxocobalamin is used to treat conditions involving a deficiency (low levels) of vitamin B12. It is one of the group of chemicals called cobalamins, which are sometimes known as forms of vitamin B12. It is used to treat low levels of vitamin B12 as hydroxocobalamin is a form of vitamin B12. In general this drug is used to treat low levels of vitamin B12, either because of a low level of vitamin B12 in the diet or poor absorption of this vitamin.