Crimson Red - 222 - Pottery Pigment Stain Colors Made in Germany Earthenware Stoneware Porcelain (40 g. (1,41 oz.))

I searched for "mason stains" to use with my students in my advanced pottery class and these are most definitely not a mason stain. we did the lesson adding more and more and more and nothing seemed to happen or change and when I fired up the low fire (cone 05) sample tiles at 30% stain the clay was mostly white with BARELY a few flecks of pale red (it burned away even at a lower temperature)I think that these may be concrete stains instead.