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Molecular formula : MW : CAS :
nature : SiO2 essences of a stone, and often contain impurities. Mostly black, blue and black, dark brown, dark gray, light gray and sometimes white or yellow. As tuberculosis - like clumps. Very hard. Notable shellfish fracture. Lobe very sharp, and the use of wire percussion, as a result of friction and sparks, commonly known as flint. Used in the manufacture of porcelain, pottery and Ball intensive, but also can be used as a ball mill liners and grinding powder.
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