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Charcoal is a reformulation of Obsidian that is made to better withstand higher temps (∆6)
Fired Shrinkage is 13% and Water Absorption is 2% when fired to cone 5/6. Our newest addition is a medium grit black body without the issues of bloating! Works well with most glazes and provides a beautiful black base for decoration.
Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
US$40
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