Indanthrone Blue PB60 - Artist Grade Handmade Honey Based Watercolor Tube 15ml Sketch Books Made from the gemstone

Made from the gemstone

001% of additional pigment was added

and non-toxicity—replacing older

If you use it in your watercolor

Vine Black (PBk8 CI#77268)

Indanthrone Blue PB60 - Artist Grade Handmade Honey Based Watercolor Tube 15ml Sketch Books Made from the gemstonePB60 CI#69800 (Indanthrone Blue) Series 4 Indanthrone Blue is classified as an organic vat pigment. It is a rich, deep blue with a subtly warm undertone. It has a transparent quality, making it excellent for glazing techniques with a non granulating texture in watercolor applications. Indanthrone was originally developed as a vat dye in the early 20th century by German chemical companies (around 1901). Vat dyes were known for exceptional fastness