— rr — 35 
.. dnquinata Calce, Marga, A 
cii chra Ferri, Bolus. 
Humo, Ardefia, 
Vidi etiam e longinquo, ni fallor, Terram hanc 
ex lafpide & Granite redivivam, Salibus nonnullis 
fub alia forma immixtam, ultimaque metamor- 
phoíi ad Terre metallice dignitatem evectam., 
Hinc ftatus Argille quadruplex; nempe 
1) excrefcens in p/afficam Terram, 
| 2) recrefcens in Szeazizes, 
3) deliquefcens in Sal 
4) fübfiftens in Metallo. 
Nata a refolutis Oceani civibus conflat. > 
1) Terra vitre(cibili, — 
* xy : MEUS 
Hec Generis humani commoda pluritnum 
promovent, 
17. SILEX. Terras omnes duritie fuperat, ad 
Chalybem fiepius fcintillat, cum alcali fixo 
in Vitrum diffluit, 
Hujus fpecies funt T ! 
i) Susx aclatinus, fragmentis regulae 
ribus, opacis, Jafpis: 
-  pellueidis, 74c£ates. 
2) — quari£ofuf ; fragmentis irregu- 
laribus, : EC 
a) amorpbus , Quarzum rude, 
b) eryftallinus, : 
* pretiofus, Gemma 
i ** ignobilis, Cry/fa/fus, 
3) = arenarius ; particulis diftináis, 
—— Salulu | 
p//4 
conglutinatis, Cos, Quadrum, 
Vtrum. 
e Adamas 
