240 K. jiMBü : 



the usual botryoidal aggregates, short minute needles of maUi- 

 chite, which sometimes show the ordinary cry Staline habit under 

 the microscope. 



59. Azurite. 



Small crystals of this mineral are found in the Kosaka 

 (Kikuchu) and Akakawa mines. They are less thon 1.5 cm. in 

 length. They must not be confused with barite plates coloured 

 deep-blue with azurite substance, which are found in the same 

 localities. 



60- Psilomelane. 



Manganese oxides (pyrolusite and psilomelane) of Numa- 

 DATE in Ugo, NiSEUMBETS in Shiribeshi Province, &c., are 

 mostly botryoidal, but sometimes also in more or less fibrous 

 groups. Nasa has given a list of these oxides in different 

 provinces of Japan. 



F. Sulphates, Molybdates, &c. 



61. Barite. 



KuPvATANi in Kaga. — There are found in these mines white 

 rhombic plates of barite with oP, ^F, P«^, -JP ^, &c. They 

 enclose minute particles of jamesonite, in such distribution as to 

 produce a zonal structure. The largest diameter of the crystals 

 sometimes measures 9 cm. 



Nakayamatöge and Aikawa in Sado. — Besides nodules of 

 radial-fibrous structure, there are found prismatic as well as rect- 

 angular-platy crystals, sometimes 8 cm. in length. Yamada has 

 observed ^P^, œP^. oP, c^P, œPj, Pc^, ^pc^, ip^B, p^é, 



