Database fields in category Site identification

Label	Statistics	Description
`site`		The name or names of the mine, prospect or mineral occurrence as it is referred to in the literature. If more than one name has been used, the primary name is the one in most common usage and is listed first.
`ARDF_num`		Unique label assigned to each site. First two letters comprise the quadrangle code, followed by a three digit number.
`MRDS_num`		Unique identifier for the record as it appeared in the Mineral Resources Data System (MRDS).