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flint;chert;silex
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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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More Detailed Data:
1) silica, crystalline-quartz;agate;alpha-quartz;amethyst;chalcedony;cherts;crystalline silica, quartz;crystallized silicon dioxide;flint;flintshot;free crystalline silica, quartz;gold bond r
2) flint glass
3) taconite
4) hard clay;flint clay
5) flint glass
6) flint paper;flint-glazed paper;flint-coated paper
7) flint glazed paper
8) Reichert-Meissel value
Notice Some description was translated by software and the data is only as a reference.
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