Revised and new crystal data for indium selenides

A redetermination of crystal data for InSe (hexagonal), α-In₂Se₃ (rhombohedral), α-In₂Se₃ (hexagonal), β-In₂Se₃ (rhombohedral), γ-In₂Se₃ (hexagonal), and δ-In₂Se₃ (hexagonal) has been undertaken because of discrepancies among the published results in the literature and in the JCPDS Powder Diffraction File.