Mino Shino Recipe

Here is a Jim Robinson teabowl. He generoulsy sent a note to explain the glaze:

Take either the Mino or Snowcap and add 10 red iron to the base , glaze thickly and then coat heavily with the white base ( Making sure to use the same base) Finger comb while top glaze coat is still wet.   You can try loading up base glaze with ochres, barnard slip, yellow or black iron, etc. Each one will register a different iron response. Snowcap generates a "redder" response; Mino a more golden color. You must use a fine (325 ) mesh alumina  or even a blend of calcined  (325) and coarse(150mesh) Hydrate. Georgies in Portland has a good current source for the fine material if you have any trouble locating a source.

Mino Shino cone 10
60 Nepheline Syenite
10 Spodumene
30 Alumina oxide (A-12)

3.6 Bentonite

Snow Cap Shino cone 10

85 Nepheline Syenite
15 Alumina oxide (A-12)

2.1 Bentonite

Enjoy!

John Britt

Comments

Marian Parkes said…
For locals, the alumina oxide on the shelf at Highwater is 325 mesh even though it doesn't say that. They have 100 mesh, but it isn't bagged up and on the shelf out in the store.

Just FYI...
Bearsbearsbears said…
I want to sink my teeth into those whites!

Any chance these would work at cone 6? is a .932 KNa &/or .944 LiKNa enough to melt such high AlSi at cone 6?
Togeika said…
John, I tried this with Mino and it is great!
John Britt said…
Rock on Lee. Thanks to Jim Robinson!
Togeika said…
I'll try it with Whitecap next. It uses less Alumina Oxide.
I remember when Tony Clennel got back from Japan and looking at Ken Matzuzaki's shinos. He made a nice basket and said he remembered some old shino in the basment. It was at paste stage. I think he took a rag and mopped it on the handled basket and his result was very similar to Ken's and other's thick applied Shinos. I will test this next firing. I have Custer crushed to 30mesh I will put into some of the shino paste. I'll put a base of 10% iron shino on, and then trowel thick shino on.
Cambria Pottery said…
I want to try it also thanks for encouraging info
John Britt said…
Great! Let me know.
Cambria Pottery said…
Super interesting please post all results.
Unknown said…
John, I know this is an old post but hope you are still following these. I have you high fire glaze book and you say mino should be at 1.25 specific gravity. Having mixed this up and tried it the mino seems very thin at 1.25, to thin to accomplish this effect. When you do this do you mix the Mino to a higher sg? Also, does it matter if it's Alumina Hydrate vs Alumina Oxide (calcined hydrate)? I was using oxide but the original post seems like it could be either or a combination of the two.

Thanks
John Britt said…
I mixed it that thin for the red/orange coat. Then thicker for the white. I used A-12 alimina...but can't get it anymore...so try alumina hydrate or oxide.
Togeika said…
You can always dip more than once. Doing this, you can resist the first dip for decoration and redder color there.