MINERALOGY. 155 



the phlogifton, and therefore wholly 

 uniting with that. 



SECT. CLII. 



B. Sulphur that has dhTolved, or is faturated 

 with metals, Sulphur metallis faturatum. 

 1. With iron, Sulphur marte faturatum. 

 Pyrites, or Copperas-ftone, Pyrites. 



This is the fubftance from which moft 

 fulphur is prepared, and is therefore 

 ranked here with all its varieties. It is 

 hard, and of a metallic mining colour. 

 a. Pale yellow Pyrites, Pyrites fubflavus* 

 Marcafite. 



This is very common, and contains 

 a proportionable quantity of fulphur 

 with refpeet to the iron -, when once 

 thoroughly inflamed, it burns by itfelf. 



1. Of a compact texture, Fete turd 

 aquali : PolitaPiedra del Fnca, Hif- 

 panorum. 



2. Steel-grained, Texturd chalybed. 



3. Coarfe-grained, Textura granulatd. 



4. Criflallifed, Christ alii fatus. 



It ihoots moflly into cubical and 

 ocloedral figures, though it alfo 

 crifcallifes into innumerable other 

 forms. 



SECT. CLIIf. 



b. Liver-coloured Marcafite, Pyrites co- 

 lore rubefcente. 



Its colour cannot be defcribed, be- 

 ing betwixt that of the preceding 

 marcafite, and the azure copper ore. 



When 



