252 



106.38 106.55 



88. Tourmaline. 



Black crystals, usually with only R, -2E,, <^F, co Po &c., 

 are found (generally not in abundance) in the pegmatite of 

 Yamanoo, Saimaeu, Oganeta, (fee, in Hitachi Province. A 

 pseudomorpli of mica after tourmaline occurs at Yokogawa, &c., 

 in the same province and measures about 2 cm. in diameter of 

 basal sections. 



Peculiar flat crystals of black tourmaline, with R prevailing 

 and coP much shortened, occur at Goshodaira in Shinano 

 Province. Their diameter is about 5 cm. 



Beautiful radial aggregates of dark needle-shaped tour- 

 maline occur with quartz-vein in pegmatite in an old tin- 

 mine of Sensui in Obira, Bungo Province. Some of the needles 

 have rhombohedral terminations ; many of them are very thin, 

 brown-coloured, and appear as fine enclosures in quartz crystals 

 as well as tufts of hairs on their outside. 



Some crystals of tourmaline also occur, according to 

 Kochibe and others, at Kushigi in Hizen Province, &c. 



89. Lievrite. 



Crystals of this mineral are known to occur at Kamioka 

 in Hida, (according to Ko). Those of Ginjiki in Obira, Bungo 

 Province, are found in abundance, together with grey sharp-edged 



