Asbestos is a set of six naturally occurring silicate minerals, which all have in common their eponymous asbestiform habit: i.e. long (roughly 1:20 aspect ratio), thin fibrous crystals, with each visible fiber composed of millions of microscopic "fibrils" that can be released by abrasion and other processes.They are commonly known by their colors, as blue asbestos, brown asbestos, white asbestos, and green asbestos.
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Islam spread through military conquest, trade, pilgrimage, and missionaries
South Africa; migrant workers; they spend most of the year working in mines and factories, visiting their families only a few times each year for brief periods
