NOTES ON THE MINERALS OF JAPAN. 259 



100.53 



As minerais occuring in paragenesis witli tliis axinite, we 

 have liedenbergite and its decomposition product, dark-green 

 garnet, magnetic pyrite, arsenopyrite, fluorite, &c. 



At GiNJiKi in Obira as well as near this place, we find 

 another kind of axinite, which is grey, sharp edged, glassy 

 in appearance, and with striations on prismatic faces. In a 

 dark-green hornblende aggregate associated with this axinite, 

 there was found a vein of argentiferous galena. Brown garnet, 

 lievrite, &c. are found with this variety of axinite. 



99. Biotite (?). 



A well-known locality of the various kinds of mica is 

 Tanokamiyama in Ömi, which I will take as the starting 

 point of my investigation of Japanese micas. The biotite of 

 this place is found in dark-green six-sided or irregular plates, 

 with foldings parallel to the lines of pressure-figure. The dia- 

 meter of the plates attains 5 cm. The crystal faces are not 

 measurable, for the lamellae composing each crystal are not 



