What ingredients are used to make glass?
Glass can be made from a few of the most plentiful minerals in the Earth’s crust. But no one knows for surf how or when the recipe was discovered. One ancient story claims that it was discovered by sailors who made a campfire on a beach. Lumps of glass were formed by accident and found among the cooling sand and ashes. Modern industry makes more different kinds of glass than you could count in a week. One large plant uses glass to manufacture 37,000 different products and keeps on hand more than 50,000 recipes for making different kinds of glass. You might start this long list with all the different colored glasses you have seen. Then add heat resistant and bulletproof glass, window glass and spectacle glass. In addition to these, scores of different recipes are used to make glass for special duties in laboratories and in electrical equipment. The list of ingredients in all these recipes is very long. But the basic ingredients are the same, and they make up more than 95% of almost ever
