Barium compound structure and manufacturing method therefor

A barium compound structure, comprising:

• a plurality of first compound particles containing a barium compound that is crystalline and is different from barium sulfate;
• a binding part covering a surface of each of the plurality of first compound particles and containing barium sulfate that is crystalline;
• and
• a plurality of second compound particles containing a compound that contains silicon, wherein
• the first compound particles are bound through at least one of the binding part or the plurality of second compound particles, and
• each of the plurality of second compound particles is arranged inside the binding part.