![Cobalt Oxide](http://mysterycreekceramics.co.nz/cdn/shop/files/Iron-Oxide-Black_6febcf0e-2285-4ab0-b07c-82bdd3621c54_823x823.webp?v=1691540236)
Mystery Creek Ceramics
Cobalt Oxide
$40.00
Cobalt oxide is a metallic colouring oxide that produces blue in glazes at all temperatures (unless in very high percentages where it will be black).
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