Normal mirrors are made with high-quality glass known as mirror quality. It features fewer blemishes and marks in the glass from the float supplier. Bevels smooth the edges of optical glass by means of an abrasive wheel, one that files and sands slabs of slate for building purposes. Silvers is a white ductile very malleable metallic element that is capable of a high degree of polish, is chiefly monovalent in compounds, and has the highest thermal and electric conductivity of any substance