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Historically a very expensive ground lazurite pigment, synthetic pigment has been used since the 1830's making it one of the most popular and affordable blues, Yves Klein blue is mostly Ultramarine. (Series 2)
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Pigment Classification:åÊInorganic
Color Index Name:åÊPB 29
Color Index Number:åÊ77007
Chemical Description:åÊPolyulfide of Sodium-Alumino-Silicate
Opacity/Transparency:åÊSemi-Transparent
Lightfastness Rating:åÊI
Permanency:åÊNot for exterior use
Munsell Notation Listing:åÊHue 8.0 PB Value 2 Chroma 4
Gloss Average:åÊ23.89
Viscosity Range:åÊ400-1000 CPS
CIE L*a*b* Values:åÊL*24.36 a*12.28 b*-25.74
Tint Strength:åÊ79.94
