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Three polytypes of chrysotile are known. [8] These are very difficult to distinguish in hand specimens, and polarized light microscopy [6] must normally be used. Some older publications refer to chrysotile as a group of minerals—the three polytypes listed below, and sometimes pecoraite as well—but the 2006 recommendations of the International Mineralogical Association prefer to treat it as ...
Amosite and crocidolite are considered the most hazardous asbestos fiber types; [5] however, chrysotile asbestos has also produced tumors in animals and is a recognized cause of asbestosis and malignant mesothelioma in humans, [6] and mesothelioma has been observed in people who were occupationally exposed to chrysotile, family members of the ...
The most common asbestiform mineral is chrysotile, commonly called "white asbestos", a magnesium phyllosilicate part of the serpentine group. Other asbestiform minerals include riebeckite, an amphibole whose fibrous form is known as crocidolite or "blue asbestos", and brown asbestos, a cummingtonite-grunerite solid solution series.
Dish of serpentine with inlaid gold fish, 1st century BC to 1st century AD, with 9th-century mounts Budai carved from serpentine, height 8 cm (3.1 in) Serpentines find use in industry for several purposes, such as railway ballasts, building materials, and the asbestiform types find use as thermal and electrical insulation (chrysotile asbestos ...
Until 1984, [4] the Artex coating was made with white asbestos (Chrysotile) to strengthen it. This material is only harmful when in a powder form, such as when being sanded or while drilling holes, and poses no risk while it is undisturbed on ceilings or walls and covered with emulsion paint.
A new, potentially more dangerous strain of mpox, the virus formerly known as monkeypox, has been reported in California.. The California Department of Public Health (CDPH) has reported the first ...
These three-star signs aren't to be messed with!
[1] [2] [3] Injuries attributed to asbestos have resulted in both workers' compensation claims and injury litigation. [4] [5] Health problems attributed to asbestos include asbestosis, mesothelioma, lung cancer, and diffuse pleural thickening. [6] [7] One of the major issues relating to asbestos in civil proceedings is the latency of asbestos ...