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Каолин – Уикипедия
Каолинът е вид мека глина с бял цвят. Използва се като съставна част при производството на порцеланови изделия, хартия, гума, бои и много други продукти. Състои се от самостоятелни кристали, имащи размер от 0,2 до 50 μm, както и от минерали. Формулата му е: Al2O3·2SiO2·2H2O. Около половината от добития каолин се използва при производството на …
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