metals. 87. Plumbum. 
287 
. With metallic l^re, melting with fulphurous vapours 
fernfirum. but more difficultly than galena, and it the 
h'eat be increafed forming a black glafs. 
2. Cryftalliaed in long prifms or pyramids. 
Plumbum bafalticum, Syji, xll. 3. i, 1 34 > ”• 
Galena llriata fFaller miner. 294. 
Brown lead ore. Kirn^an muter. 2. p. 222 
Brown lead ore. Schmeiffer mineral, i. P- ipti- _ 
Found in the mines of Snveden, fometimes maffive, fometitnes 
cryllallized in elullers ; befides lead and fulphur itcoiuams 
fome filver and iron. 
Of the clour and ludre of lead, Bbrous, breaking into 
crudofe fragments. 
Plumb fibrofo llriat. Syst. nat. xn. 3. p. 1 33 - «• 5 - 
Plumbum antimonial. WalUfyft. z- p- 3 °S- "• 4 - 
Antimonial lead ore. Schmei/ser muter, z. p.pp • 
Pound in the mines of Siberia, Sweden, Hungary, and Spatn, 
of a compaa and llriated texture, with the pieces into wh ch 
it breaks either ftraight or incurved, and the fibres parallel or 
fafcicled : when heated it emits fulphurous flame and vapours, 
befides lead and fulphur, it contains antimony and filver. 
2 • Combined with copper and antimony, a fmalter proportion 
iercyntcam. and fulphur, and a very fmall quantity of Gi- 
ver with metallic hiftre. 
Wpifoulden. Klaproth chem. annal. 17 <) 0 . \ .p. 
Found in the mines of Antlreajbarg on the tiar%: contains lead 
34,0. copper 16,3. aiuimony 16,0. iron 13,7. fulphur ib,o. 
filver 2,3. 
. f Combined with antimony, a fmaller proportion of copper 
eornuheum. f„lph.ir, and a very fmall quantity of iron, with 
rnfitiilllC luftre* , 3 f 1 j 
Found in the mines of Corn^alh and contains oxyde of lead 
about 5^ antimony 2,. copper 14. fulpnur 7. uon 2. 
Klaproth. 
euiaudiatm. With metallic Inftrc, emitting arfenical vapours before the 
blowpipe. 
fziPA'Zi of .^ydo .f ...d 
antimony and arfenlc. 
