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Answer» SODIUM oxide CALCIUM oxide Calcium carbonate SILICA Solution :Glass is MADE exclusively from natural or nature-identical inorganic raw materials , the majority of which exist or can be produced in Germany. Essentially , a total of six natural raw materials are necessary to produce soda-lime glass (sheet glass and container glass) : approx . 70percent quartz sand `(SiO_(2))` , 13 percent soda `(Na_(2)CO_(3))` , 10 percent lime `(CaCO_(3))` and small quantities of dolomite , feldspar and potash.
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