Asbestos
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Asbestos or asbestus is a group of naturally occurring, fibrous silicate minerals that have been used for thousands of years to create flexible fire-resistant objects, such as fireproof fabrics. It is
Industrial scale asbestos mining began in 1878 in Thetford township, Quebec. By 1895, mining was increasingly mechanized.
Canada's biggest power shovel loading an ore train with asbestos at the Jeffrey Mine, Johns-Manville Co., Asbestos, Quebec, June 1944
The applications of asbestos multiplied at the end of the 19th century—this is an advertisement for an asbestos-lined clothes iron from 1906
Asbestos fabric
Riebeckite
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Riebeckite is a sodium-rich member of the amphibole group of silicate minerals. It has chemical formula Na2Si8O222. It forms a solid solution series with magnesioriebeckite, where Mg substitutes for F
Asbestos
…Union and Australia, it has been banned as a potential health hazard and is no longer used at all. Amphibole class fibers are needle-like. Amosite, crocidolite, tremolite, anthophyllite and actinolite are members of the amphibole class. Amphiboles, including amosite (brown asbestos) and crocidolite (blue…
Black riebeckite in an alkaline pegmatite from Lindinosa near Évisa, Corsica, France
Crocidolite, variety of riebeckite, from Pomfret Mine, Vryburg, South Africa