Definition:
A description of the atom(s) designated by this atom type. In most cases, this will be the element name and oxidation state of a single atom species. For disordered or nonstoichiometric structures it will describe a combination of atom species.Examples:
| deuterium |
| 0.34Fe+0.66Ni |
Appears in list containing _atom_type_symbol
Type: char
Category: atom_type
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