Patent ID: 8704429

Claim:
A bismuth iron oxide powder comprising: (A) grains including a bismuth iron oxide having a perovskite-type crystal structure; (B) grains including a bismuth iron oxide having a crystal structure classified to a space group Pbam represented by a Short Hermann-Mauguin symbol; and (C) grains including a bismuth iron oxide or a bismuth oxide having a crystal structure that is classified to a space group I23 represented by a Short Hermann-Mauguin symbol, wherein content of the grains (A) is 51% or larger and 99.9% or smaller of a total of the bismuth iron oxide powder at a quantitative ratio determined by x-ray diffraction, and wherein a sum of content ratios of the grains (B) and the grains (C) is 0.1% or larger and 49% or smaller of the total of the bismuth iron oxide powder at a quantitative ratio determined by x-ray diffraction.