1. St johns black
85 Alberta slip
15 nepheline syenite
5 cobalt carbonate
2 bentonite
* mix bentonite in warm water first. Then add others.
2. Black
5 dolomite
6 whiting
67 soda feldspar F-4
5 Epk
17 flint silica
3 cobalt carbonate
4 red iron oxide
1 bentonite
* mix bentonite in warm water first.
3. VC black
65 Albany slip
15 nepheline syenite
10 barium carbonate
10 talc
1 chrome oxide
2 manganese dioxide
1 cobalt oxide
4 red iron oxide
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