Fimbriate : fringed. 

 , Ciliate : hair-like extensions, radiately placed. 

 Tufted : 



Filamentous : as already defined. 

 Curled : as already defined. 

 6. Optical characters (after Shuttleworth). 

 Transparent: transmitting light. 

 Vitreous : transparent and colorless. 

 Oleaginous : transparent and j'ellow ; olive to 



linseed-oil colored. 

 Resinous : transparent and brown, varnish or 



resin-colored. 

 Translucent : faintly transparent. 

 Porcelaneous : translucent and white. 

 Opalescent : translucent, grayish-white by re- 

 flected light, smoky-brown by transmitted 



light. 

 Nacreous: translucent, grayish-white, with 



pearly luster. 

 Sebaceous : translucent, yellowish or grayish 



white. 

 Butyrous : translucent and yellow. 

 Ceraceous : translucent and wax-colored. 

 Opaque : 

 Cretaceous : opaque and white, chalky. Dull, 



without lustre. 

 Dull : without luster. 

 Glistening : shining. 

 Fluorescent. 

 Iridescent. 



