Used as both a secondary and primary flux.
£3.13 ex. VAT
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.
Cornish Stone contains crystalline silica which when inhaled may cause long term lung damage, therefore we recommend wearing a P3 Mask. Keep working areas free of dust by cleaning up with a damp sponge.
In keeping with our overall general advice, we suggest wearing full PPE when handling raw materials. This includes a mask, safety
glasses, and gloves. We also suggest working in a well ventilated area.
It is a sensible precaution for children not to work with raw materials.
See the SDS in the product attachments for more information.
