Colour Tone: Deep charcoal grey with blue undertones

Description: A volcanic dark grey inspired by cooled basalt rock and industrial mineral surfaces. Dense, dramatic, and atmospheric with subtle blue-black depth under transparent glaze.

Recommended Stain Percentage in Stoneware Clay:

• Soft smoky grey: 1–2%
• Balanced charcoal body: 3–5%
• Deep near-black intensity: 6–8%

Intensity Behaviour: Very strong tinting power. Even low percentages create visible tonal shifts in porcelain or white stoneware bodies.

Best Firing Range: 1000–1300°C

Works Best when 

• Mixed with slip
• Used as a wash
• Mixed in glaze