Atamadai-type potteries, a kind of Jomon pottery, from Hinoki site (Tochigi, Japan) are said that might be purposely mixed biotite as a temper into the raw clay. In practice, 59 Atamadai-type potteries and 18 other types Jomon potteries from Hinoki site were analyzed qualitatively by XRD. As the result, it was indicated that biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH,F)₂) which is solid-solution mineral, was mixed as a temper in Atamadai-type potteries. The lattice spacing d may be useful for estimation of the minerals' origin because the solid-solution ratio probably depends on the origin. In this study, we examined origin dependency of biotite's lattice spacing using the 14 biotite-containing rock samples by X-ray diffractometry (XRD) to estimate the origin of temper that is contained in Atamadai-type potteries. The lattice spacing values of biotite 001 was classified into five groups. Some of them were not significantly different although they were collected from the different origins. Furthermore, others were significantly different although the sampling points are close to each other. The clarification of the causes is required for provenance estimation of the temper in Atamadai-type potteries using the lattice spacing of biotite.