Orpiment is the name of the mineral pigment and it is extremely toxic. Due to its extreme health hazards and its reactivity with other pigments, this pigment is obsolete. Additionally this pigment displays moderate to poor lightfastness.
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Realgar (Mineral)
PY39 Realgar
Alternate Names
King’s Yellow
Orpiment
Pigment Description
Resources
PY39 Realgar pigment data from David G. Myers, The Color of Art Pigment Database, [Artiscreation.com](https://artiscreation.com/yellow.html#PY39 Realgar)
Stats
Lightfastness
Moderate to Poor
Transparency
Varies from Transparent to Opaque
Toxicity
Extremely toxic
Ariscreation gives this pigment a "D", meaning "Extremely Toxic, only attempt working with these pigments (especially the dry form) in laboratory like conditions with proper safety equipment." We are not health and safety experts, so as always please consult the relevant authorities.
Particle Size
Coarse/Gritty
Dry Pigments listing PY39 Realgar
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