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
Tremolite
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Tremolite is a member of the amphibole group of silicate minerals with composition Ca2Si8O222. Tremolite forms by metamorphism of sediments rich in dolomite and quartz, and occurs in two distinct form
Asbestos
…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 asbestos), were…
Tremolite Campolungo
Tremolite from the Aure Valley, French Pyrenees (size: 8.2 × 6.7 cm)
Crystalline tremolite