i68 » SYSTEM OP 



SECT. CLXVI. 



B. Minerahfed Gold, Aurum miner ali fat urn. 



This is an ore in which the gold is fo far 

 mineralifed, or fo entangled in other bodies, 

 as not to be diiTolyed by the aqua regia. 

 i. Mineralifed with fulphur, Aurum fulp hurt 



miner alifatum. 



a. Mineralifed by means of iron, Aurum 

 fulpbure miner alifatum mediante ferro. 

 Marcafitical gold ore, Pyrites aureus. 



It i§ found at Adelfors, in the pro- 

 vince of Smoland, and contains an 

 ounce of gold, or lefs, in an hundred 

 pounds. 



b. Mineralifed by means of quickfilver, 

 Aurum fulpbure miner alifatum mediante 

 mer curio. 



It is found in Hungary. 

 f. Mineralifed by means of zink and iron, 

 Aurum fulpbure mineralifatum mediante 

 zinco £s? ferro, ant argento. The Schem- 

 nitz blende. 



At Schemnitz in Hungary are found 

 zink ores, which contain a great deal of 

 filver, and this filver is very rich in 

 gold (Se6l. clxxv.) *. 



yelps are daily discovered. The filver from the mines at Ofter- 

 filverberget, in the province of Dalarne, contains about a 

 fourth part of an ounce of gold in every pound of filver. 

 Some native gold has likewife been found in Swappawari, 

 fbove Tornea in Lapland, and in Bafmas, near Riddarihyttan 

 In Weftmanland. 



* Since gold and fulphur have no immifcible power or at- 

 fraclipn to one another, many have infifted that gold never 

 could be found in marcafie, or thofe ores which contain ful- 

 phi^r : $in fines we know by experience, that gold can be 



melted 



