Wakamatsu mine is situated in Tari, Nitinan-cho, Hino-gun, Tottori Pref., and the ultrabasic body developed in the district is composed mainly of serpentinized harzburgite.
Chrysotile was found in the 7th level of Wakamatsu mine in small amount, and, in this paper, description will be made on this mineral, and also on chlorite (partial serpentine) , forming the surrounding chloritite which is closely related with the former. The associated relation of the minerals is indicated in Fig. 1.
As to the geology and ore deposits of the district the writer has made a description in Journal of the Japanese Association of Mineralogists, Petrologists, and Economic Geologists.