https://www.nist.gov/publications/intense-turquoise-colors-apatite-type-compounds-mn5-tetrahedral-coordination
Intense Turquoise Colors of Apatite-Type Compounds with Mn5+ in Tetrahedral Coordination | NIST
Oct 12, 2021 - The solid solutions of chlorapatite compounds Ba5Mn3-xVxO12Cl (x=0-3.0) and Ba5Mn3-xPx
https://mn5.itsherpa.com/
Mn5