Elements are fundamental substances of matter - matter that is composed of all the same atom type. At present, 118 elements are well documented (1 to 118; element 122 is controversial). Of these, 94 are known to occur naturally on Earth (most of which occur in rocks & minerals). Some will say the number of naturally occurring elements on Earth is less than this, but the correct number is 94 (hydrogen to plutonium; technetium & neptunium & plutonium have been identified in some rocks). Some of the 94 occur in rocks & minerals in trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state as minerals.