Flagstone is our most popular dark mid-fire clay. Flagstone is a blend of two high-iron content clays, ball clays and other materials to achieve plasticity and strength. Rocky Mountain Clay has been making Flagstone for many years with great customer results in both functional ware and sculptural pieces.
Flagstone is designed for versatile use with an outstanding medium red brown color giving you the 'wow' factor!
In reduction, this clay tends to take on a darker iron red color tone but will vary depending on how it is reduced.
Cone: 5-7
Firing Range: Mid Fire
Clay Type: Stoneware
Texture: Smooth
Best for: Wheel Throwing and Hand Building
Wet Color: Terra Cotta
Oxidation: Cinnamon
Reduction: Dark Iron - testing is recommended before gas firing.
| Cone | Avg. Shrinkage Rate (± .5%) | Avg. Absorption Rate (± .5%) |
| 5 | 14% | 0.64% |
| 6 | 15% | 0.66% |
| 7 | 16% | 0.0% |
Image 1: Flagstone in Oxidation, Cone ^6 (Electric Kiln)
Image 2: Flagstone in Reduction, Cone ^6 (Gas Kiln)
Image 3: Flagstone in Oxidation, Cone ^5 (Electric Kiln)
