C/4 Charcoal Ash Glaze--C/4 Charcoal Cendré

Nepheline/Syenite, 35
Silica, 20
Hardwood Ash (washed), 26
Lithium Carbonate, 9
Gerstley Borate, 10
Total, 100

Bentonite, 2
Rutile, 2
Manganese Dioxide, 2
Black Cobalt Oxide, 0.5