I 37 I 



Volcanic glafs. 



Siliceons horny. 



Nephritic. 



Chalcedony. 



Cornelian. 



On.yx, 



Sardonvx. 



Cat's-eye. 



Lapis ophthalmius. 



Agate. 



Pyromachus. 



Horn-done. 



Petrifactions. 



Lavas refemblingHorn" 



ftone. 

 Siliceous jafpideous. 

 Heliotrope. 

 Egyptian pebble. 

 Black jafper. 

 Petrifactions. 

 Lavas refembling jafper, 

 b. Almninar. 



Native alum earth. 



Mountain leather. 



Mountain cork. 



Lithomarg. 



Porcellane earth. 



Pipe clay. 



Bole, 



Miraculous earth of 



Saxony. 

 Fuller's earth. 

 Effervefcent argill. 

 Umber. 

 Rubric. 

 Mica. 

 Schorl. 

 Black chalk, 

 pure fchift. 

 Immature jafper. 

 Aluminous petrifadlions 

 Aluminous lavas. 

 C. Muriatic, 

 Tripeli. 

 Spanifh chalk. 



Briancon chalk. 

 Steatite. 

 Serpentine, 

 pot Hone. 

 Talc. 

 Afbeftus. 

 Pumice-flone. 

 Fllterijig-llone. 

 d» Pure calcareous. 

 Mineral agaric. 

 Chalk. 

 Olleocolla. 

 Traventine ftone. 

 Lime-ilone. 

 Lumachella. 

 White marble. 

 Calcareous fpar. 

 Calcareous italaCtlle. 

 Calcareoos petrifadtion. 

 Mixed zvith acids, 

 Alabalter. 

 pyps. 



Mixed with met ah. 

 Turcois. 

 Malachite. 



Sparry iron. ^ 



Sparry tin. 



Mixed with inflammalhs 

 Swin^-Ilone. 

 VVaiferblend. 

 Variegated marble. 

 2. Compound, of flliceous 

 and calamine Earths, 

 Opal. 



Oculus mundi. 

 Chryfoprafe. 

 Scintillating fpar. 

 Q^ian z, greafy 6c opake. 

 Variegated jafper. 

 Pudding-Hone. 

 Porphyry. 

 Granite. 

 Gneifs. 

 Murckitein. 

 Lap. llrateriiis. 



