Limestone and Bone Ash Additions to Sandstone Clay
These are two batches of test tiles with limestone and bone ash for the flux. Because calcium can make a very narrow firing range, I mixed two batches to fire on my middle shelf and …
Tag: limestone
More Testing on the Sandstone Clay
The Sandstone clay is a sandy Clay that I dig right next to my house. Previous tests have shown that I need 14-15% added Nepheline Syenite to flux it down to cone 6. That’s more …
White Glaze Tests
I have had several requests for a white glaze. These are tests. I took Spearmint from “Mastering Cone 6” and reformulated it to use local materials (53% local). I have had great luck with Spearmint …
Limestone tests continued…
This is 100% local to me body. Still not quite sure if the limestone will work as a flux or just be a disaster. I rolled out all my test tiles yesterday morning for shrinkage/firing …