r 



« J 



5. Silfa'cus. 

 Quartz. 

 Ameihyfh 

 Emerald. 

 Beryl. 

 Prafe. 



Oriental ruby. 

 Spinel. 



Occidental ruby. 

 Hyacinth. 

 Garnet. 

 Chryfoberyl. 

 Chryfolite, 

 Olivin. 

 Obfidian. 

 ^^horl. 



Tourmalin. 

 Thumerftgne. 



Phrenite. 



.'Edilite. 



Zeolite. 



Staurolite, 



Rubellitc. 



Opal. 



Semiopal, 



Pitchftone. 



Hydrophanes. 



Hyalite. 



Calcedony. 



Cat's-eye. 



Flint. 



Hornftone. 



Schiftofe hornftone. 



Siliceous fchilt. 



Bafamile. 



Hornflate, 



Japper. 



Egyptian pebble. 



S nople. 



Porccllaniic. 



Heliotrope. 



Woodftone. 



Elaftic quartz. 



Feifpar. 



Labradore-floni'. 



Petrilitc. 



Fclfite. 



Argentine feifpar. 



Reditone. 



Siliceous fpar. 



Agate. 



Stronthian. 



Jargon. 



Sidneia. 



Adamantine earth. 

 6. Aggregate Jf ones. 



Granite {q.iiartz, feifpar, 

 mica). 



Sienite ( quartz, feifpar, 

 hornblend, or quartz, fei- 

 fpar, hornblend, mica). 



Granatine triplets, formed 

 of any triple aggregation 

 of quartz, feifpar, mica, 

 fchorl, jade, hornblend, 

 garnet, ferpentine. 



Norka or murker (quartz, 

 mica, garnet). 



Grunften (hornblend and 

 mica, hornblend and fei- 

 fpar). 



Granitell (duplicates). 



Stelftein (quartz & mica). 



Rapikivi (feifpar & mica). 



Granilite ( aggregates of 

 four). 



Gneifs. 



Shiflofe mica (quartz and 

 mica). 



Porphyry. 



Amv«;daloid. 



Pudding-flone. 



Sand-llones. 



Rubble-ftone. 



Breccias. 

 J. Mixed earths. 



Calcareous. . 



Lime-ftones. 



Fz 



