Mayco Elements multi-tone Glaze in a pint bottle Mayco Elements glazes have organic and earthy hues, inspired by nature. Layering, firing temperature and texture will influence the finished work. This is a multi-tone glaze with a main color and another that breaks in crevices and over texture. This is a pint bottle of Oyster Shell, a glossy pale gray glaze that breaks a darker gray. This color may be considered dinnerware safe if used according to manufacture's directions.