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Cadmium, a soft, malleable, ductile, bluish-white metal, was discovered in Germany in 1817, and Germany remained the only important producer for 100 years. Currently, a large percentage of global cadmium metal production takes place in Asia. Cadmium is generally recovered as a byproduct from zinc concentrates. Zinc-to-cadmium ratios in typical zinc ores range from 200:1 to 400:1. Sphalerite (ZnS), the most economically significant zinc mineral, commonly contains minor amounts of other elements; cadmium, which shares certain similar chemical properties with zinc, will often substitute for zinc in the sphalerite crystal lattice. The cadmium mineral, greenockite (CdS), is frequently associated with weathered sphalerites and wurtzites [(Zn, Fe)S], but usually at microscopic levels. A significant amount of cadmium is also recovered from spent nickel cadmium batteries. Cadmium is primarily consumed for the production of rechargeable nickel cadmium batteries; other end uses include pigments, coatings and plating, and as stabilizers for plastics. Solar cell manufacturing may become another significant market for cadmium in the future. Cadmium telluride thin-film photovoltaics are an alternative to the traditional silicon-based solar cells and are a preferred photovoltaic technology for commercial rooftop applications and for large-scale, ground-mounted utility systems. |
Publications
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Annual Publications
- Cadmium
PDF Format:
| 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | - Appendixes
- Cadmium
PDF Format:
| 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
XLS Format:
| 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | - Archive
| 1932-1993 | - Recycling-Metals
Special Publications
- Cadmium Recycling in the United States in 2000
C-1196-O - Historical Statistics for Mineral and Material Commodities in the United States
Data Series 140 - Metal Prices in the United States through 1998
- Cadmium (PDF)
- Mineral Commodity Profiles: Cadmium
OF-02-238 - Cadmium (Materials Flow)
U.S. Bureau of Mines Information Circular 9380
Contacts
- USGS Mineral Commodity Specialist
Amy C. Tolcin
Phone: 703-648-4940
Fax: 703-648-7757
Email: atolcin@usgs.gov
- USGS Mineral Resource Specialist