Quartz from the Visheritsa deposit in Bulgaria and Zn oxide and precipitated CaCO3 manufactured in that country may be used successfully for the production of high-quality flint glass, but the native Pb oxide, potash, BaCO3, dolomite, and other raw materials are unsuitable.
Origin
Unknown
Journal Title
Stroit. Materiali Silikat. Prom,. [4] 31-34 (1964)
Sector
Primary Papers
Class
PP 367