/ vuh • rih • dee • uhn / Viridian	Jump to pigmentMadder lake (alizarine)AzuriteBone blackBrown ochreCarmineCadmium orangecadmium yellowCerulean BlueCalcium carbonate whitesCharcoalcobalt blueCobalt greencobalt violetCobalt yellowChrome orangechrome yellowcopper resinateEgyptian blueEmerald greenGreen earthIndian yellowIndigolead whiteLemon yellowmalachiteNaples yellowOrpimentlead tin yellowPrussian bluerealgarred leadRed ochresmalttitanium dioxideUltramarineUmbraVan Dyke brownverdigrisvermilionviridianYellow ochrezinc white

1.  Overview     2. History of use     3. Making the pigment     4. Technical details

History of Viridian:               A painted swatch of Viridian: Guignet of Paris patented the process for manufacturing viridian or transparent oxide of chromium in 1859. Its excellent permanence and lack of toxicity could replace all other greens, both ancient and modern.   When was Viridian used?             Discovery:      Used until:   1838   continues in use