KeywordsArizona Geological Survey Bulletins
United States of America
MetadataShow full item record
PublisherUniversity of Arizona Bureau of Mines
DescriptionLead 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.
Series/Report no.Bulletin No. 45
Mineral Technology Series No. 16