amphibole

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  • noun

Words related to amphibole

a mineral or mineral variety belonging to the amphibole group

References in periodicals archive ?
20) As to the claim of the greater reliability of asbestos body counts by light microscopy, we have shown that the severity of fibrosis in asbestosis correlates best with amphibole fiber counts measured by scanning electron microscopy and not with asbestos body counts determined by light microscopy.
Therefore, this mechanism is considered as not relevant for the Zanbil amphiboles but it is slightly true for plagioclase coarse grains (Fig.
Nomenclature of amphiboles: Report of the subcommittee on amphiboles of the International Mineralogical Association Commission on New Minerals and Mineral Names.
EPA 2014c), was the site of a former mine that produced vermiculite contaminated with a mixture of asbestiform amphiboles, including winchite, richterite, and tremolite asbestos (Meeker et al.
The amphiboles within the intrusion can be texturally divided into phenocryst, matrix, and poikilocrystal amphiboles, and plagioclase within the intrusion is divided into phenocryst and matrix groups.
Geological Survey (USGS), which worked in conjunction with the EPA at the Libby site, 95 percent of the amphiboles from the samples were winchite and richterite, neither of which has ever been classified as asbestos.
The greater pathogenicity associated with amphiboles is attributed to the rigidity of its fibers more likely to be more aerodynamic and deposit in the gas exchange regions of the lungs where many penetrate the pulmonary intersti-tium.
These clasts are essentially ophiolitic consisting of serpentine, olivine, pyroxenes, plagioclase and amphiboles with minor of cherty made up of microquartz and mega quartz.
where vermiculite containing asbestiform amphiboles were mined from 1920 to 1990 and given free of charge for insulation and to build driveways and ball fields.
Carbone drew a parallel between Dunn County and Libby, Montana, where vermiculite-containing asbesti-form amphiboles were mined from 1920 to 1990 and given free of charge for insulation and to build driveways and ball fields.
NSSGA also has recommended expansion of the definition of asbestos to include other asbestiform amphiboles.
The mineral composition of tectonites which developed under metamorphic conditions in the crust is dominated by feldspars, quartz, amphiboles and sheet silicates.