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Cone 6 to 10 oxidation (top to bottom) fired shrinkage and porosity testing bars.
| Materials | 
Jordan Fireclay
 | 
| Materials | 
Fireclay
 | 
| Glossary | 
Fireclay
 A clay that withstands fire. In the ceramics industry, clays that are resistant to deforming and melting at high temperatures are called fireclays. Kiln bricks are often made from fireclay.  | 
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