310 B. KOTO 



4. Minano, Simo-tano and Yorii, in Chichibu Göri; Ogawn, in 

 Hiki Göri, Musasi province. 



5. Miyanosawa and Saraba-gawa in Kanra Göri, Köziiko province. 



6. Misaka, in Iwamae Göri, Iwaki province. 



7. Okino-Sima, Kii province, etc. . 



A peculiar Epidole. 



There are still others which may be conveniently described on 

 the present occasion. In speaking of the Glaucopliane-schist in tlie 

 other paper,(') the writer has already given a brief notice of the pre- 

 sence of the remarkable Piedmontite. There we find, besides others, 

 a peculiar Epidote in the form of long irregular plates (1/2- 1 cm.), of 

 a slight yellowish -green colour, and variously traversed by transversal 

 cracks and longitudinal striœ. The morphological habitus differs 

 from an ordinary Epidote by its more flattened tabular condition. 



It possesses sometimes a faint rosy tint, and its pleochroism is 

 weak, but distinct, being more intense when the short diagonal of the 

 lower Nicol is at right angles to the longer sides of the Epidote. In 

 other instances, the red pigment is localized in the centre {Fig. VII.), 

 so as to form a distinct zone ; but the reversed case, i. e. a red margin 

 w4th the yellow centre, has never happened to be observed so far 

 within the reach of the writer's knowledge. 



The rosy pigment, wliich gives a peculiar feature to our 

 Epidote, is due most certainly to the presence of a manganese oxide, 

 and forms an intermediate stage between common Epidote and 

 Piedmontite. One thing should not be passed unnoticed, namely, the 

 abundant enclosures of clumps of opaque Iron glance and blood-red 

 hexagonal scales of the same mineral, tlie typical Piedmontite being 



(i) loc. cit. p. 85. 



