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Natural Iron-Oxide is the basis for this single-pigment color, named after the region in Italy where it was first mined. Raw Sienna retains more of its yellowish color because is created prior to the heating process that creates "burnt" sienna. (Series 1)
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Pigment Classification:åÊInorganic
Color Index Name:åÊPY 43
Color Index Number:åÊ77492
Chemical Description:åÊNatural Hydrated Iron Oxide
Opacity/Transparency:åÊSemi-Transparent
Lightfastness Rating:åÊI
Permanency:åÊExcellent
Munsell Notation Listing:åÊHue 9.0 YR Value 4.5 Chroma 6.6
Gloss Average:åÊ27.98
Viscosity Range:åÊ750-1000 CPS
CIE L*a*b* Values:åÊL*88.09 a*4.82 b*12.73
Tint Strength:åÊ88.08
