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Used for firing raku test specimens at Plainsman Clays.
| Glossary | 
Raku
 Gas fired rustic ceramic ware is cooled from red-hot in a closed container with organic material. The zero-oxygen atmosphere produced reduces carbonate metal decoration to its metallic form.  | 
| Glossary | 
Kiln Firing
 All types of ceramic are fired in a kiln to cement particles together to produce a hard and water and temperature resistant product.  | 
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