Study on the synthetic FeWO_4 - MnWO_4 series minerals

合成FeWO_4-MnWO_4系鉱物について

Study on the synthetic FeWO_4 - MnWO_4 series minerals

Creators Ito Hironori

Creators Komatsu Ryuichi

Creators Kitakaze Arashi

FeWO_4 (ferberite) and MnWO_4 (huebnerite) series minerals have a continuous solid solution. The solid solution (wolframite) were synthesized by dry method at 800℃ in Nitrogen gas. The synthetic wolframites are aggregate of prismatic crystal and their colors are varying with the composition of their Fe contents from yellow to reddish brown. X-ray powder diffraction (Table 1) data for synthetic wolframite are examined by Guinier method and unit cell parameters (Table 2) obtained by a least squares calculation. These values (Figure 1) increased linearly with increasing Mn contents (Figure 1). The results similar to those of previous studies but have more linearity.

[ISSN]1345-5583

[isVersionOf] [URI]http://memoirs.lib-e.yamaguchi-u.ac.jp/