A low fire red clay with about 18% grog (30 mesh flint grog) that fires to a light red-orange color at cone 06 to 05, and a richer, deeper red color when fired hotter, up to about a cone 2.
Flint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236,