Raku Glaze Recipes

Blue Crackle Raku Glaze
Gerstley Borate 80
Cornwall Stone 20
Cobalt Carbonate 6

Blue Patine Raku Glaze
Gerstley Borate 80
Bone Ash 20
Copper Carbonate 2
Tin Oxide 1.25
Cobalt Carbonate 0.25