chrysotile

/kris"euh til/, n. Mineral.
a fibrous variety of serpentine; asbestos.
[1840-50; CHRYSO- + Gk tílos something plucked]

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Fibrous variety of the magnesium silicate mineral serpentine; it is the most important asbestos mineral.

Individual fibres are white and silky, but the aggregate in veins is usually green or yellowish. Chrysotile fibres have a high tensile strength, similar to that of other asbestos minerals (see amphibole asbestos). The largest deposits of chrysotile are in Quebec and in the Ural Mountains.

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      (Greek: “hair of gold”), fibrous variety of the magnesium silicate mineral serpentine; chrysotile is the most important asbestos mineral.

      Chrysotile fibres have a higher tensile strength than other asbestos minerals, but they are less acid-resistant than the fibrous amphiboles. Individual chrysotile fibres are white and silky, but the colour of the aggregate in veins is usually green or yellowish. The chief occurrence is in altered peridotite as veins with a lizardite matrix; the world's greatest deposits of this type are in Quebec and in the Ural Mountains of Russia. Most often the fibres are oriented across the vein and are less than 1.3 cm (0.5 inch) long, but sometimes they are more than 15 cm long and can be found oriented along the vein.

      Under the electron microscope the fibres of chrysotile are seen to be tubes, actually the structural layers of the mineral rolled in spiral form. The space within and between the tubes may be filled with a partially developed, layered material.

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Universalium. 2010.

Look at other dictionaries:

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  • chrysotile — noun Etymology: German Chrysotil, from chrys + til fiber, from Greek tillein to pluck Date: 1850 a mineral consisting of a fibrous silky variety of serpentine and constituting a common form and principal source of asbestos …   New Collegiate Dictionary

  • chrysotile — noun /ˈkrɪs.ə.tɪl/ A fibrous silicate mineral with the chemical formula Mg(SiO)(OH); a form of serpentine asbestos …   Wiktionary

  • chrysotile — chryso·tile (krisґo tīl) the most widely used form of asbestos, a gray green magnesium silicate in the serpentine class of asbestos; inhalation of its dust may cause asbestosis and, rarely, forms of mesothelioma and other lung cancers …   Medical dictionary

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  • chrysotile — [ krɪsə(ʊ)tʌɪl] noun a fibrous form of the mineral serpentine. Origin C19: from Gk khrusos gold + tilos fibre …   English new terms dictionary

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