Rhusma, rus′ma, n. a mixture of quicklime and orpiment, used as a depilatory.
He made some twice with iron, and three times with orpiment.
Her lips were black; teeth red as orpiment, which jutted out unseemly from her jaw.
For example, it seems to have been used as a medium for vermilion and orpiment.
Item, you may make a colour with dragon's blood and orpiment, which you may lower with brown, and heighten with orpiment.
Treacle, honey, or moist sugar, mixed with about 1⁄12th their weight of Kings yellow or orpiment.
Both realgar and orpiment were important for pigments, medicinal purposes, and poisons among the Ancients.
Massicot and orpiment, he considers as those which have been the least permanent amongst all the mineral colours.
Pure vermilion you may lower with brown or with dragon's blood, and heighten with orpiment.
With sulphides or pigments containing sulphur, orpiment may be used with less danger.