MODE VI. ICONITB. 



also be premised, that sometimes the red or 

 flesh-coloured stone, more rarely used for the 

 same purposes by the Chinese, really belongs to 

 the magnesian kind. 



Klaproth mentions two kinds of iconite, the 

 transparent and the opake; the former unex- 

 pectedly presenting a third more argil, and only 

 half the water of the latter. 



STRUCTURE I. TRANSPARENT. 



Klaproth describes this sort as being of an olive 

 or asparagus green, verging through various tints 

 to a greenish blue. The interior aspect is very 

 glittering, and of a greasy lustre; the fracture 

 scaly. 



STRUCTURE II. OPAKE. 



This, according to Klaproth, is reddish white, 

 flesh red, and with variously-coloured veins ; the 

 fracture is less distinctly scaly ; the lustre dull, 

 opake, but somewhat translucent on the edges. 



Werner has rightly added to the colours of the 

 bildstein the greenish grey, of different degrees 

 of intensity, the yellowish passing into yellowish 

 grey mingled with green, and into pale yellowish 

 brown. The greyish white seems to be one of 

 the most common tints of this substance. 



IF r> o T m^sr 



