Raw Sienna retains more of its yellowish color because is created prior to the heating process that creates "burnt" sienna

05Viscosity Range: 5000-6000 CPSCIE L*a*b* Values: N/ATint Strength: N/A

among others

Guignet of Paris patented the process for manufacturing Viridian Green in 1859

2 Chroma 12Gloss Average: 82

golden fluid micaceous iron oxide Forgyldning Raw Sienna retains more ofA great iridescent charcoal colour, this paint also makes a sensuous ground for opaque light colours in dry media or acrylics. Pigment Classification: InorganicColor Index Name: PR101Color Index Number: 77491Chemical Description: Specular Hematite OreOpacity Transparency: Semi OpaqueLightfastness Rating: N APermanence: ExcellentMunsell Notation Listing: Hue N Value N Chroma N AGloss Average: 1. 14Viscosity Range: N ACIE L*a*b* Values: L*N A a*N A b*N