Cornish Stone

Originally mined in Cornwall, the stone is a complicated mix of many ingredients. Its qualities have changed over the years, but it is known for being low in iron; therefore, white firing. It is still used as a secondary flux (used alongside other fluxing materials) in earthenware glazes, but in stoneware glazes, it can be an alternative to more common feldspars.

Source: UK

For advice and further reading, read our 'Using Raw Materials' PDF.

SiO2 73.76%, Al2O3 16.33%, K2O 4.31%, Na2O 3.30% + others <1%*

*General analysis, not supplied by the supplier.

Harmful if inhaled; wear an FFP3/P3 mask. Work in a well-ventilated area and keep working areas free of dust by cleaning up with a damp sponge. Do not eat or drink in your workspace.

Children should not work with raw materials.

See the SDS in the product attachments for more information.

• Cornish Stone SDS (PDF)
• Using Raw Materials