Oxford Clay
Oxford Clay
Katherine Tomlinson
127. What is Cornish Stone in Pottery and What Can You Use Instead?
12 minutes Posted Aug 23, 2026 at 3:44 am.
0:00
12:17
Download MP3
Show notes

Join me for this episode of the podcast, where I talk about what Cornish stone is, what Cornish stone is used for in pottery, and some alternatives if you can't find Cornish stone from pottery suppliers near you.

*Always use an FFP3 Face Mask when making Pottery Glazes to protect your lungs from the silica dust in pottery glaze-making materials.

The glaze recipes used in this episode are:

Recipe 1

40 parts - Soda Feldspar

40 parts - Sieved Hardwood Ash

20 parts - Quartz

Recipe 2

40 parts - FFF Feldspar

40 parts - Sieved Hardwood Ash

20 parts - Quartz

Recipe 3 (not good!)

40 parts - Sieved Hardwood Ash

60 parts - Quartz

Watch the video version of this episode on YouTube

✨Support the Podcast

-------------------------------

Resources for Potters:

Pottery Paperback Books available from Amazon

Free Pottery Guides:

🆓 Download the Free How to Make a Pottery Glaze Workbook (suitable for beginners):

🆓 Download the Free How to programme an Electric Kiln for bisque and stoneware glaze firings (includes full kiln firing schedule)