Cornwall Stone Substitute Stoneware Opal Glazes Larger additions of fine material

Larger additions of fine material can impart matteness if the glaze is able to take it into solution (sourcing alumina from kaolin

Sets 25-35 minutes after machine mixing

More plastic than porcelains but semi-vitreous to promote stability in the kiln

Laguna Clays are ready to use out of the box

Smooth talc free clay that fires light red

Cornwall Stone Substitute Stoneware Opal Glazes Larger additions of fine materialThe original Cornwall Stone Mine is now closed, and this material is now produced synthetically by Laguna Clay Co. Because it was mined from granite rock (traditionally, from the Cornwall area, UK), it is actually composed of a combination of minerals, and the ratio of these chemicals could vary somewhat drastically. This means that potters who used this material over long periods may notice different results when using the same recipes. An advantage