Figure further shows the breakdown between the number of components that each structure has when we consider either unique species or elements. With the exception of unary and nonary materials, mixed valency is present in all the materials. What is further illustrated is that the materials in this dataset can have one or more elements where mixed valency is observed. An example of this is the elemental quaternary material Li 10 GeP 2 S 12 , a known lithium superionic conductor , where depending on the crystal structure, it can be an ionic quinary material (mp-696128) where S exhibits mixed valency as S -and S 2 -or an ionic senary material (mp-696138) where P and S both exhibit mixed valency as and P 4+ and P 5+ , and S -and S 2 -, respectively.