The stain is Mason 6020. The porcelain body is L3778D1 (covered with a transparent glaze). Manganese alumina stains are highly refractory, so much so that they simply do not work in glazes. But in vitreous bodies, like this one, the stain has no effect on the degree of vitrification! And produces a vibrant color - one that is difficult to achieve in glazes.

This picture has its own page with more detail, click here to see it.
This is L4588 red burning porcelain. I got the idea after coffee break and was rolling and pressing specimens right after lunch. How?
The major reason is not being intimidated by mixing body and glaze tests. Another is having all the tools and materials close at hand (shown here). Third is a good record-keeping system where I make sure to enter results, notes, pictures and links to related tests at every stage of a project.
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Stain 6020
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