I bought the different dry raw materials and a precise scale, for this reason this time I weighed the ingredients precisely. However, I still use a very dense ash slip instead of dried ash: drying the ash would be too much work at the moment.

I'm preparing the basic recipes for the next experiments. For now I have prepared the first two recipes based on the first experiments: 

First recipe: 

- 1 kg potassium feldspar 

- 1 kg ball clay 

- 170 gr bentonite 

- 500 ml pheatine 

- 2 liters of water 

- 4 kg dense ash slip

Second recipe: 

- 1 kg potassium feldspar 

- 1 kg china clay

- 170 gr bentonite 

- 500 ml pheatine 

- 2 liters of water 

- 4 kg dense ash slip

I'm looking for other simple basic recipes to try. Something that can introduce someting new for the experiments with oxides. For this reason I looked to my books searching ideas. 

Ideas or advice are very wellcome!!!

I have tried to modify some recipes of "Glazes cone 6 1240°C" book of Michael Bailey: exchanging whiting with wood ash, dolomite with wood ash and talc, exchanging soda feldspar and litium carbonate with spodumene, adding 5% bentonite for single firing. I am trying to modify a cone 8 recipe of the book "colour in glazes" of Linda Bloomfield exchanging soda feldspar with spodumene and calcium borate frit with colemanite, exchanging whiting with wood ash and using a litle less quartz hoping to fire successfully at 1240°C instead of cone 8.

Looking to my books these are some ideas to try:

Recipe 3 (recipe T13 modified from Michael Bailey book): 

830gr soda feldspar, 130 china clay, 140 bentonite, 430 quartz, 120 Zinc oxide, 1,5 kg wood ash dense slip. And pheatine.

Recipe 4 (recipe T14 modified from Michael Bailey book):

1kg spodumene, 500gr china clay, 160 gr bentonite, 500gr dense wood ash slip, 100gr talc, 100gr zinc oxide, 240gr quartz.

Recipe 5 (recipe OR1 modified from Michael Bailey book):

1kg spodumene, 130gr china clay, 150gr bentonite, 322gr bone ash, 16gr litio carbonate, 362gr talc, 244gr quartz

Recipe 6 (recipe for chromium green modified from Linda Bloomfield book):

1000gr spodumene, 320gr colemanite, 1000gr dense wood ash slip, 107gr china clay, 300gr quartz, 107gr bentonite.

I hope to use this recipe with chromium to obtain a green glaze.