ON GLAÜOOPHANE. UU 



EXPLANATION OF THE PLATE XIL 



Fig. I. A striped diallage-fragment, showing the gradual transi- 

 tion of diallage into glaucophane, and then into crocidolite. Slide is 

 taken from a stone-ax found in the village Nomiya, near Sapporo, Yesso. 



Fig. II. Intergrowth and the penetration of one individual of 

 glaucophane into the other upon t^he prismatic face. 



Fig. III. Microscopic appearance of a slide of a slaty amphibolite 

 from the Tsuyetate pass, Tosa, showing some remnants of diallage, 

 secondary glaucophane and the derivative mineral of the latter. 



Fig. IV. Secondary glaucophane with a diallage remnant, found 

 in the trichitic groundraass of Melaphyre, found in Akaya, Musashi 

 province. 



Fig. V. Intergrowth of two individuals of glaucophane upon the 

 clinopinacoid. 



Fig. VI. A diallage-remnant in a slide of amphibolite from 

 Izushi, Musashi province, showing the same orientation of diallage, 

 and the paramorphosed glaucophane; hut with different angles of ex- 

 tinction. 



