1. A clay that can resist high temperatures without becoming glassy. 2. Soft, embedded, white or gray clay rich in hydrated aluminum silicates or silica and deficient in alkalies and iron.
Related terms:
1. A clay that can resist high temperatures without becoming glassy. 2. Soft, embedded, white or gray clay rich in hydrated aluminum silicates or silica and deficient in alkalies and iron.
Related terms: