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In the 19th century better manufacturing methods for bone black yielded darker, denser pigments that were less expensive. So bone black replaced genuine ivory black on artists' palettes. Essentially bone and ivory blacks are the same compounds of carbon and calcium. The pigment color and quality compare so favorably that artists' oil color made today from bone black is called Ivory Black. Gamblin Artists' Oil Color, Ivory Black is a good, all purpose black that has a weak tinting strength and is slightly warm in its transparency. This is a good choice for mixing greys, tinting and mixing with other colors. Pigment: Bone black (PBk 9), Vehicle: Alkali refined linseed oil, Lightfastness I, Series 1, Semi-Transparent
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