NOTES ON THE MINERALS OF JAPAN. 255 



among the detritus of a valley, aggregates of danburite and its 

 beautiful crystals. The largest is 1 cm. broad. Yellow garnet is 

 associated with this mineral. Observed crystal faces are œFôô, 

 ooP^, oP a)P, ^Po-, œPT, P^, 4P^, 2Pr and 2P^ (?). On 

 the fîice 4P 00, are horizontal striations and nearly rectangular 

 depressions elongated parallel to the a axis. The edges of combi- 

 nation of P CO and 2PT are usually rounded, while those of oP 

 with other faces are sometimes similarly modified. 



96. Garnet. 



None of the Japanese garnets has l^een carefully analyzed, 

 and we have only to classify them, for the present, according to 

 their colour and mode of occurrence. 



The garnet rocks on the west of Kamaishi in Pikucliü, and 

 on KuRODAKE in Etcliü, which contain magnetite, are very in- 

 teresting. They are found at the contact of palœozoic rocks with 

 granitic and diorilic masses, and in them at both localities good 

 garnet crystals are often collected. At Wadatöge in Shinano, 

 cavities in a white glassy rock connected with spherulitic obsidian 

 contain dark-red garnet crystals sitting on their walls. At 

 Yamanoo in Hitachi, pegmatite contains numerous brownish-red 

 garnet together with silvery and dark-coloured mica scales. At 

 Hog I in Nagato Province, garnet is found in crystalline 

 limestone. Other occurrences of various garnets in the same 

 rock are those at Kawahake and Tokiwa in Shinano Province 

 and other places. 



Ohashi, &g., on the west of Kamaishi. — Green or dark-green 

 crystals of garnet on magnetite are not seldom observed. 

 Large dark-red crystals in 2O2 with subordinate mOn , found in 

 Wada's collection, measure about 3.5 cm. in diameter. These 



