Author
Joseph, P.E.Issue Date
1916-12-26Keywords
Arizona Geological Survey BulletinsRecent
United States of America
wulfenite
descloizite
crocoite
vanadinite
cerussite
mimetite
pyromorphite
anglesite
galena
commercial demand
commercial interests
lead ores
Metal
mineral
lead
Metadata
Show full item recordPublisher
University of Arizona Bureau of MinesDescription
Lead is a soft, bluish white metal; its freshly cut surface has a bright metallic lustre, which, upon exposure, becomes coated with a film of the oxide. Unlike other metals, it is sufficiently soft to be scratched with the thumb nail. It is fashioned into foil or wire by rolling and pressing. It is readily soluble in nitric acid, but the other acids are without special solvent effect upon the metal at ordinary temperatures. It is heavy, having a specific gravity of 11.3. Its melting point is 327 degrees C. and its atomic weight, 207.10. It is found in nature in small quantities in many localities and is always a secondary mineral, being formed by reduction from other lead minerals through volcanic action. 12 p.Additional Links
https://library.azgs.arizona.edu/item/AGSB-1552427063099-128Language
enSeries/Report no.
Bulletin No. 45Mineral Technology Series No. 16