Volcanic glafs. 
Siliceous horny- 
Nephritic. 
Chalcedony. 
Cornelian. 
Onyx. 
Sardonyx. 
Cal’s-eye. 
Lapis ophthalmius. 
Agate. 
Pyromachiis. 
Horn-ftone. 
Petri faftions. 
Lavas refemblingHorn.. 
ftone. 
Siliceous jafpideous. 
Heliotrope. 
Egyptian pebble. 
Black jafpcr. 
Pctrifafiions. 
Lavas refetnbling jafpcr. 
b. Aluminar. 
Native alum earth. 
Mountain leather. 
Mountain cork. 
Lithomarg. 
Porcellane earth. 
Pipe clay. 
Bole. 
Miraculous earth qf 
Saxony. 
Fuller’s earth. 
EfFervelcent argill. 
Umber. 
^iubric. 
Mica. 
Schorl. 
Black chalk. 
Pure fchilL 
Immature jafper. 
Aluminous petrifa£lions 
Aluminous lavas. 
C. Muriatic. 
Tripeli. 
$pani(h chalk. 
Briancon chalk. 
Steatite. 
Serpentine. 
Pot (lone. 
Tac. 
/ fbcilus. 
Pumice- ftone. 
piltering-ftone. 
d. Pure calcareous. 
Mineral agaric. 
Chalk. 
Oileocolla. 
Traventiiie ftone. 
Lime-ftone. 
Luinacheila.^ 
White marble. 
Calcarcoti.s fpar. 
Calcaieous ftaiaSiiie. 
Calcareoos pi trifaflion. 
Mixed with acids. 
Alabafter. 
Gyps. . 
Mixed with nietals. 
'I'urcois, 
Malachite. 
Sparry iron. 
Sjtarry tin. 
Mixed with inflammables 
Swine-ftotic. 
■ Wafl'erbicnd. 
Variegated marble. 
2. Compound, of filiceous 
and calamine EaiihS. 
Opal. 
Octilus mtindi. 
Chvyfoprafe. 
Scimillating fpar. 
Qpariz, greafy opake. 
Variegated jalper. 
Pudding- ftone. 
Porphyry. 
Granite. 
Gneifs. 
Murckftein. 
Lap. ftiaterius. 
