gczop
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Posts: 202
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Post by gczop on Oct 28, 2015 14:51:49 GMT -6
In an attempt to emerge from the crystal glaze doldrums I first leafed through each and every page (twenty as I recall) on Phil's site for inspiration. Great to be part of the new forum. I suppose since its a NEW CGF I can put up some pics of old favorite pieces to get started. A tease: what's in the glaze in my avatar. Cheers, Gordon
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Post by tileman2 on Oct 28, 2015 18:40:14 GMT -6
Hi Gordon, welcome aboard.
I will take a shot at the tease; the worst that could happen is being wrong. The field is MNO, which I suspect is a plate because of the glaze/clay interface checking. The cloud is higher levels of TiO2; somewhere in the 6-8% range: although high levels of rare earth lanthanides can cause that same clouding. The crystal itself: hmmm. Could be yellow FE, could also be vandium: but have seen bismuth produce that color. The needle crystals, along with the white spots makes me think that sodium is also involved. There ya go: glaze ingredients for $100 Alex.
Tom
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gczop
Full Member
Posts: 202
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Post by gczop on Oct 28, 2015 18:57:27 GMT -6
Astonishing take; this glaze is after Notes on the Production of Crystalline Glazes pg. 186 By Ray T. Stull, E. M., (In Cer.), Elkland, Pa. American Ceramic Society 1906. Will call it astrophyllite analog. Only components in the glaze are oxides of Sodium, Manganese, Titanium and Silicon (ok a bit of Aluminum in frit 413). Well done indeed. Gordon
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