WSO - San Francisco

An interesting light gray body with fine sand. A Cone 10 (and higher) clay which fires off-white in oxidation and gray/white in reduction. Also good for Raku at low temperature. Care should be taken at high fire use in functional ware. Slightly open body even at Cone 10.

Characteristics
Cone: 10
Wet Color: Light Gray
Firing Color: Oxidation: Off-White - Reduction: Gray/White
Texture: Slightly Coarse
Penetrometer Target: 7
Avg. Shrinkage 2±%: 10.0%
Avg. Water Absorption 1±%: 2.6%
COE x 10-6: 4.46