296 



PHYSIOGRAPHY. 



Kyanite. 



KUPFERINDIG. (See Purple Copper-Ore.) 

 KUPFERSCHAUM. (See Kupaphrite.) 



KUPHOLITE. 



Massive : the individuals flat, also impalpable. 

 Lustre pearly. Color, yellowish white, wax-yellow, light yel- 

 lowish brown. Streak white. Transparent, to translucent. 

 Hardness = -5 . . . 1-00. Sp. gr. = 1-922 . . . 1-934. 



1. It yields, when calcined, about 25 p. c. of water. 



2. It occurs at Schwarzenberg, in the Erzgebirge, accompanied with 

 the Metaxite and Kryptose Carbon-Spar of BREITHAUPT. 



KYANITE. Prismatic Disthene-Spar. MOHS. 



Primary form. Doubly oblique prism. P on M=93 

 15'. PonT = 100 50'. M on T=106 15'. 



Secondary form. 



Fig. 271. 



M 



T 



T on I - 140 55' 

 Tono - 122 20 



P on I - 97 48' ) 



P on o - 83 38 > PHILLIPS. - 



Mon / - 145 16 ) ( 



Cleavage, parallel wilh M highly perfect, and easily ob- 

 tained 5 less distinct parallel with T ; least of all, parallel 



