United Clays recommends this as a substitute for Albany Slip. It is very plastic, much more so than Albany Slip (drying shrinkage is over 9%).
Particle size distribution (% undersize)
Fired color cone 4: Chocolate semi-gloss
Cone 6: Dark brown gloss
Cone 10: Brown translucent
Thermal Expansion: See United Clay data sheet for chart.
Fired at cone 2, 1, 02, 05 (top to bottom). Reaches zero porosity between cone 1 and 2.
Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically.