Why is oxygen not a mineral?
Uncombined oxygen is a gas, not a solid, which is a requirement
of a mineral.
A mineral by definition is a solid with a crystal structure.
A mineral must follow a certain criteria. It has to be naturally occurring, generally inorganic homogeneous solid with a crystalline structure and a definite (but not fixed) chemical composition. Water cannot be a mineral because it is a liquid. Honey cannot be a mineral because it is a liquid and is organic Oxygen cannot be a mineral because it is a gas. Teeth cannot be a mineral they are organic. Ice, however, can be a…