Referred to as Docimium marble, Docimian marble, Synnadic marble, or Phrygium marble, the white marble quarried at Dokimeion (İscehisar-Afyon, in central Phrygia, Asia Minor) extracted by the Romans for its fine-grained white quality and it was used extensively for sculpture and sarcophagi in ancient times. In this study, Docimian white marble, which has been of international importance since ancient times, was investigated. In the first stage, the characterization study was conducted, and in the second stage, the importance of Docimian white marble in the Roman period was expressed, it is using in the architectural artifacts, sarcophagi, and sculptures were explained. For this purpose, a multi-analytical study was conducted using the techniques of chemical analysis (major and trace elements), mineralogical-petrographic analysis (XRD, optical and scanning electron microscopy), and maximum grain size measurement (MGS). XRD analyses in agreement with optical microscope analyses revealed that calcite is the main component of the Docimian white marble samples. Maximum grain size (MGS) values were measured from 18.5 to 1009.5 µm on the Docimian white marble. The Docimian white marble has the advantage of low porosity (0.7%), low water absorption by weight (0.02%), and good compressive strength after frost (59 MPa) also it has a good uniaxial compressive strength (70 MPa) property. The abundance of some trace elements such as Sr and Mn can be up to 109 and 74 ppm, respectively, in Docimian white marbles, and it is approximately confirmed the data of the other studies.