TABLE IIL continued. 405 



iob Parts 



Siliceous Genus. 



Cryftal 



Flint 



Petrofilex 



Jafper 



Chalcedonian 



Ruby 



Topaz 



Hyacinth 



Emerald 



Sapphire - 



Chryfoprafium - 



Lapis lazuli - - 



Felrfpar - - - 



Vefuvian garnet - 



Garnet 



Martial Garnet 



Shoerl tranfparent 



Shoerl Black - - 



Bar (hoerl 



Tourmaline 



Bafaltes 



Rowley ragg 



Comp, and cellular lava 



Vitreous ditto - - 



Another from Lipari 



Black agate of Iceland 1 



nearly as the above J 

 Pumice (tone 

 Martial muriatic fpar - 

 Turkey ftone 

 Ragg ftone - - - 

 Siliceous grit with cal- "I 



careous cement - J 

 Siliceous ditto with ar- 



gillaceous cement - 

 Ditto with ferruginous 



cement ... 



a 0,6 copper, and fparry acid. b So martial fluor, 20 gypfum, as I 



believe. c n Ponderous. d 5 water. e At a medium. 



/ Remainder calcareous. g As 1 believe. h As I believe. 



; As I believe. k As I believe. / As I believe. 



