Montmorillonite from selected localities.
Japan | |
| Kagaya, B. (1962) Journal of the Mining College, Akita University, Series A, 2, #2, 60-88. |
| Akira Kato (2011) Explanations of distributed specimens at the Ordinary Meeting of Mumeikai Group, No. 34 (January, 20011). |
Hideo Kuroda (1978) Kuroko deposits occurring in mudstone at the Matsuki mine, Akita Prefecture, northeast Japan. Mining Geology 28:313-323. |