Wollastonite
Statistics and Information
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Wollastonite, a calcium metasilicate (CaSiO3), has a theoretical composition of 48.3% calcium oxide and 51.7% silicon dioxide but may contain trace to minor amounts of aluminum, iron, magnesium, manganese, potassium, and sodium. It occurs as prismatic crystals that cleave into massive-to-acicular fragments. It is usually white, but also may be gray, brown, or red depending on its composition. Deposits of wollastonite have been found in Arizona, California, Idaho, Nevada, New Mexico, New York, and Utah. These deposits are typically skarns containing wollastonite as the major component and calcite, diopside, garnet, idocrase, and (or) quartz as minor components. Major uses for wollastonite are in plastics, ceramics, metallurgy, paint, and friction products and as asbestos substitutes. |
Publications
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Annual Publications
- Wollastonite
PDF Format:
| 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 |
XLS Format:
| 2003 | - Archive
| 1932-1993 |
Special Publications
- Historical Statistics for Mineral and Material Commodities in the United States
Data Series 140 - Wollastonite -- A Versatile Industrial Mineral
FS-0002-01 - References on Wollastonite (PDF)
Contact
- USGS Mineral Commodity Specialist
Robert Virta
Phone: 703-648-7726
Fax: 703-648-7757
E mail: rvirta@usgs.gov