PETALITE

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Petalite is a feldspathic mineral rich in lithium. Lithia is lighter in weight and contracts less on cooling than its sodium and potassium oxide cousins making it an effective anti -craze agent in ceramic glazes when used in substitution. It also influences glaze colour, promoting blue from copper and pink from cobalt. For more information on petalite, see the Digitalfire.com Reference Library of ceramic materials. Show more