noun a yellow mineral consisting of arsenic trisulfide, used as a pigment in ancient times
Orpiment was commonly used as a pigment in ancient times due to its vibrant yellow color.
Orpiment is often found in association with realgar in sulfide deposits.
Orpiment is a yellow mineral composed of arsenic sulfide, used in pigments and in the preparation of arsenic compounds.
Orpiment is classified as a monoclinic mineral with a hardness of 1.5-2 on the Mohs scale.
Orpiment can be used as a pigment in painting and writing materials.
Orpiment is used in chemical research and experimentation.
Orpiment is a mineral used in the study of geological formations.
Orpiment can be used as a pigment in various art mediums.