3D Scanning and Shape Parameters of Coal and Gangue Particles

The irregular shape of mineral particles directly affects the angle of repose, bulk density and the interaction behavior between particles and contact surface. This paper presents a dataset of spatial data and shape parameters collected from 172 coal and gangue particles. The investigated materials were coal and gangue particles. The sample sizes were 37 (gangue particles) and 135 (coal particles). The particle surface models were obtained by Wiiboox 3D scanner and Reeyee_v2.5.0 software. Each particle was scanned 8 times in different directions. The final scanning model was obtained by stacking two scanning surfaces, and the shape parameters such as length ratio, flatness ratio and Zingg index were obtained by the final scanning model. This dataset is particularly useful for researchers and engineers, who want to investigate the shape of coal and gangue particles, or who want to test or benchmark measurement methods concerning the three-dimensional morphology of particles.