A fibrous, blue-green mineral composed of sodium iron silicate. Crocidolite is a minor commercial form of asbestos, called blue asbestos. It is found in Europe, Africa, South America and the United States. Crocidolite fibers have a harsh texture. They have fair flexibility and are strong. Crocidolite fibers are used to reinforce polymers and as heat resistant textiles.
Synonyms and Related Terms
blue asbestos; riebeckite; crocidolite (Port.); Krokidolit (Deut.)
- Noncombustible. Unaffected by heat.
- Highly toxic by inhalation of dust.
- Skin contact cause irritation.
Physical and Chemical Properties
- Fiber length = 12-300 mm (0.5 - 12 inches)
- Diameter = 300-350 angstroms.
- Luster = silky to dull.
- Cross section is polygonal or circular.
- Tensile strength = 80,000-200,00 psi
- Resistant to alkalis and acids.
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Identification of Textile Materials, The Textile Institute, Manchester, England, 1985
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998