Show Straight Silica Glass alan A deposit of silica mineral of at volcanic vol Tal canic canle origin has been found In Czechoslovakia Czecho Czecho- slovakia which can be used directly in n the manufacture of glass ilas without the need of adding any of ot the other common Ingredients used in making makin up the he glass glae batch This silica mineral mineraI i isaid Is III said to resemble lava and it Is understood understood under under- stood that the deposits are very vary large and that steps are being bein- taken token to utilize uti uti- lIze Ize them commercially Trade Journal |