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 …
Category: Testing
Test Results for Nepheline Syenite Additions to Sandstone Clay
For the previous post on this clay https://daylenes.com/2021/07/27/test-the-sandstone-clay/ I tested each batch only once. For better accuracy, do multiple tests. However, this tells me that I need to add more Neph Sye than I like. …
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 …
Testing the Sandstone Clay
This is a clay that is right next to my house. Super easy to access and easy to process. I first located this clay last year and did some initial tests then got side tracked …