| Monthly Tech-Tip | No tracking! No ads! |
Preston Stoneware
Description: Legacy stoneware from United Clay Mines
| Oxide | Analysis | Formula | |
|---|---|---|---|
| CaO | 0.20% | 0.02 | |
| MgO | 0.20% | 0.03 | |
| K2O | 1.90% | 0.13 | |
| Na2O | 0.60% | 0.06 | |
| TiO2 | 1.00% | 0.08 | |
| Al2O3 | 16.00% | 1.00 | |
| SiO2 | 73.50% | 7.80 | |
| Fe2O3 | 1.10% | 0.04 | |
| LOI | 5.40% | n/a | |
| Oxide Weight | 602.44 | ||
| Formula Weight | 636.83 | ||
Related Information
Links
| Typecodes |
Stoneware Clay
These materials generally contain bentonite, ball clay, kaolin, feldspar, mica, quartz and some iron impurities. They can often be used as a body with few additives. |
|---|
Data
| % < 0.5 microns | 32% |
|---|---|
| Drying Shrinkage | 4.9% |
| Water absorption | 0.2% at cone 9 |
| Dry M.O.R. (50% Silica) | 560 psi |
| Firing Shrinkage | 11% at cone 9 |
| By Tony Hansen Follow me on         |  |
Got a Question?
Buy me a coffee and we can talk 
https://digitalfire.com, All Rights Reserved
Privacy Policy