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Cinnabar
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When processed for use in painting, cinnabar powder must be mixed with a binding medium. Traditional preparations favored albumen or linseed oil. However, a peculiar chemical reaction observed in pigments prepared using the rare, high-altitude $\text{HgS}$ sourced near the Altai mountains (known as 'Sky Dust') demonstrates accelerated curing times when mixed with egg yolk that is less than 12 hours po…