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These mugs have experienced very serious shivering. This is an Albany Slip glaze with 10% lithium carbonate, it is known to have a very low thermal expansion. This problem can be solved by reducing the amount of lithium or adding high-expansion sodium or potassium. However these fixes will likely affect the appearance.

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This is 85% Alberta Slip, 11% lithium and 4% tin fired at cone 6 in oxidation. Like the original Albany version, it has a very low thermal expansion (because of the high lithium content) and likes to shiver on many clay bodies.
| Recipes | GA6-G - Alberta Slip Lithium Brown Cone 6 Plainsman Cone 6 Alberta Slip based glaze. | 
| Materials | Albany Slip A pure low plasticity clay that, by itself, melted to a glossy dark brown glaze at cone 10R. It was a popular glaze ingredient for many decades. | 
| Troubles | Glaze Shivering Ask the right questions to analyse the real cause of glaze shivering. Do not just treat the symptoms, the real cause is thermal expansion mismatch with the body. | 
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