Search Results for: Extracted oleoresins
substances such as urine and earwax were used to prepare pigments. [ ] color source(s) red insect-based colors, including: carmine , also known as cochineal , where carminic acid from the dactylopius coccus insect is mixed with an aluminum salt to produce the dye; crimson , also known as kermes , extracted
orpiment , chemically arsenic trisulfide , as s . green verdigris , chemically cupric acetate , cu(oac) ·(h o) , made historically by boiling copper plates in vinegar ; malachite , a mineral found in nature, chemically basic copper carbonate , cu co ·(oh) ; and china green, a plant-based pigment extracted...
https://en.wikipedia.org/wiki/Illuminated_manuscript