This is a great glaze that changes with the firing. These pots were fired Friday over 5 1/2 hours with .60 reduction on Oxyprobe. Cooling relatively fast, cone 12 down at the end. A similar firing 2 days later with a slower cooling, kiln was closed tight, has parsimmon finish with a more satin look! I'll refire those with a fast cooling to see if it moves them to a black glossy