Description

• This synthetic copper blue (copper calcium carbonate) used to be made from marsh lime and copper liquors. This is a lighter blue with a similar chemical composition to azurite.
• Chemical description: Basic Copper calcium carbonate
• ColorIndex: PB 30.77420
• Suitability: Tempera, Watercolor / Gouache
• Colors: Blue, Turquoise
• Forms: powder
• Solubility in water: insoluble