G200 Old Blend Feldspar
Alternate Names: MFEL S3470 Blend
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| Al2O3 | 18.20% | 1.00 | |
| CaO | 1.00% | 0.10 | |
| Fe2O3 | 0.08% | - | |
| K2O | 10.50% | 0.63 | |
| Na2O | 3.00% | 0.27 | |
| SiO2 | 66.80% | 6.26 | |
| LOI | 0.20% | n/a | |
| Oxide Weight | 560.45 | ||
| Formula Weight | 561.58 | ||
Notes
To be as similar as possible to the old G-200 feldspar, Laguna Clays blended 3 parts Minspar and 7 parts G-200 HP to produce this material.
However G-200HP was then discontinued so Laguna Clays began importing Mahavir Feldspar from India.
Related Information
Old Blend Feldspar. What is that?
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Laguna Clay sells a substitute for the no-longer-available G200 feldspar. G200 HP is higher in K2O and lower in CaO than G200, Minspar is an ideal addition since it's K2O is much lower and CaO much higher. A 7:3 G200HP:Minspar mix produces a chemistry that is remarkably close (on paper) to G200. They label this blend "Old Blend". They also list a product called "New Potash" in their pricelist, that is G200 HP.
Links
| Materials |
G-200 Feldspar
|
| Materials |
G200 HP Feldspar
|
| Materials |
Mahavir Potash Feldspar
|
| Materials |
G-200 EU Feldspar
|
| Typecodes |
Feldspar
The most common source of fluxes for high and medium temperature glazes and bodies. |