METALS. Sy. Plumbum. 287 



ferrifenm* With metallic luftre, melting with fulpburous vapours 

 and flame but more difficultly than galena, and if the 

 heat be increafed forming a black glafs. 



2. CryftallJzcd in long prifms or pyramids. 



Plumbum bafalticum. Syfi^ vat. xii. 3. p» 134, »,6. 

 Galena ftriata. Waller miner, 294. 

 Brown lead ore. Kirivan miner. 2. f. 222, 

 Brown lead ore. SchmeiJJer mineral, z. p. 176. 



Found in the mines of S-zveden, fometimes mafBve, fometimes 

 cryllallized in clufters ; befides lead and fulphur it contains 

 fome filver and iron. 



stdtafufru Of the colour and luftre of lead, fibrous, breaking into 

 cruftofe fragments. 



Plumb, fibrofo-ftriat. Syst, nat, xii, 3./. 133. », 5, 



Plumbum antimonial. WalLfyfi. z. /. 305. n. 4. 



Antimonial lead ore. Sehmeijser miner^ 2. p. 177. 



Found in the mines of Siheriat Sweden, Hungary, and Spain, 

 of a compad and ftriated texture, with the pieces into which 

 it breaks either ftraight or incurved, and the fibres parallel or 

 fafciclcd : when heated it emits fulphurous flame and vapours: 

 befides lead and fulphur, it contains antimony and filver. 



hgrcjnicttm^ Combined with copper and antimony, a fmaller proportion 

 of iron and fulphur, and a very fmall quantity of fil- 

 ver, with metallic luftre; 

 Weifgulden. Klaproth chem, annah 1790. \,p, 295. 

 Found in the mines of Andreajburg on the Harz: contains lead 

 34,0, copper 16,3. antimony 16,0. iron 13,7. fulphur 10,0. 

 filver 2,3. 



camuhiam. Combined with antimony, a fmaller proportion of copper 

 and fulphur, and a very fmall quantity of iron, with 

 metallic luftre. 

 Found in the mines of ComnjuaU, and contains oxyde of lead 

 about 50, antimony 21, copper 14, fulpnur 7, iron 2. 

 Klaprotb, 



suBttMdiatm, With metallic luftre, emitting arfenical vapours before the 

 blowpipe. 

 Razoumoiv/k. ex cur f. dans les min, ^-15. 



Found in the mines of Suhaudta^ and confifts of oxyde of lead 

 antimony and arfenic. 



