Guide to Refractory and Glass Reactions

100X MINERALS PRESENT 100X Polished section 100X Polished thin 100X Thin section A. B. Buehler alumina analysis batch birefringence block Chapter Three-A color CONFIRMED SOURCE corrosion corundum cristobalite crossed nicols crystal habit dense DESCRIPTION OF STONE Devitrifi dissociated etching examination exuded glassy phase Figure A shows fractory furnace fused Z.A.S. refractories glass defects glass industry glass tank glass technologist grain grinding HISTORY Identification inhomogeneity interface interferometer light with crossed MAGNIFICATION material MECHANISM OF PRODUCTION melter melting microscope microstructure mullite nephelite nicols and sensitive original oxide particles petrographic petrographic microscope photograph PHOTOMICROGRAPHS pinpoint Polished thin section PRESENT IN STONE reaction REFERENCES reflected light refractive index refractory ring section rundown sample scum sensitive tint plate shown in Figure silica sillimanite sintered SiO₂ soda-lime glass solution spinel Stone Types Stones in Glass strain structure superstructure tabular alumina techniques temperatures thin section viewed tion tridymite viewed in reflected zircon zircon refractory zirconia ZrO2 ZrSiO