"White clay" refers to a type of soil or clay that is light in color, typically white or pale grey. It is often used for various purposes such as making ceramics, pottery, or as a natural cosmetic ingredient in skincare products. Full definition
If you run out of white clay on your piece, move on to the next. (automobilemag.com)
Beginning at the bottom, white clay hands are shown molding sand and water into a wet, human head — size lump. (artnews.com)
I'm pretty sure it's the lovely combination of «de-gunkifying» manuka honey and Amazonian white clay with oh - so - luscious barbary fig seed, rosehip seed and jojoba seed oils that give this mask a 1 - 2 punch in the detox and rehydrate ring. (kimberlyloc.com)