This clay is lightly grogged with no sand and has shown to do really well with both hand built and thrown ceramic wares. Fires to a bluish color in bisque. Deep black at cone 10. Black clays can affect glazes so testing will be required. Bloating has not been an issue with this clay.
 
 
Cone:10
Wet Color: light brown
Fired color: Black
Texture: Slightly coarse
Penetrometer Target: 6.25
Avg. Water Absorption 1±%: .06%
Avg. Shrinkage 2±%: 10.5%
COE x 10-6: 5.4