In Geology that is a mineral, generally that is an element, look to Periodic Table.
element
element
Ammonia (NH3) is a pure substance. It is a compound made up of nitrogen and hydrogen in a fixed ratio, and it cannot be separated into simpler substances by physical means.
A substance that cannot be separated physically is a pure substance.
Carbon monoxide is considered a pure substance because it is a compound composed of two elements, carbon and oxygen, in a fixed ratio (1:1). It cannot be separated into simpler substances by physical methods.
pure
An element is a pure substance made of one type of atom that cannot be broken down into simpler substances by chemical means. Each element is defined by the number of protons in its nucleus, which determines its unique chemical properties.
If a substance can be physically separated into its components, it is a mixture, not a pure substance. A pure substance consists of only one type of particle and cannot be separated into other substances by physical means.
An element
An element is a pure substance that cannot be broken down into simpler substances by chemical means.
Not: atoms The answer is an element
An element is a pure substance that cannot be separated into simpler substances by physical or chemical means. Atoms are the smallest particles in which an element can be divided and still retain its properties.