Low-melting glass on the basis of natural alumosilicates of Karelia

The influence of the chemical and mineralogical composition of aluminosilicate rocks on the properties and structure of low-melting technical glasses has been studied. Comparative studies of glasses based on traditional glass raw materials - pegmatite and nepheline syenite, as well as unconventional ones - gelleflints and glasses from pure chemical reagents have been carried out. It was found that the use of various natural aluminosilicates in technical glasses does not significantly violate the modes of glass formation, but it makes it necessary to adjust the ratio of the main components and additives. Tab. 1, ill. 2, bibliography: 4 titles.