A type of vitreous enamel created when objects made from finely powdered quartz grains bonded with alkali or lime are fired, vitrifying the quartz crystals into a semi-transparent isotropic glass. Called Egyptian Faience after the common use of the technique in Ancient Egyptian amulets and ushabti funerary figures—it’s not the same as the much more recent glazing technique known as Faience, which uses tin oxide.
