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Cobalt Oxide - Cobalt (II,III) Oxide - Pottery Pigment Stain Color Made in Germany Earthenware Stoneware Porcelain (10 g. (0,35 oz.)) : Amazon.co.uk: DIY & Tools
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Adding A Frit To An Oxide To Create An Oxide Wash - Clay and Glaze Chemistry - Ceramic Arts Daily Community
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