What is orpiment?
Q: What is orpiment?
A: Orpiment is a mineral.
Q: What is the chemical formula for orpiment?
A: The chemical formula for orpiment is As2S3.
Q: What color is orpiment?
A: Orpiment is orange to yellow in color.
Q: What is the hardness of orpiment?
A: Orpiment has a Mohs hardness of 1.5 to 2.
Q: What is the specific gravity of orpiment?
A: Orpiment has a specific gravity of 3.46.
Q: Why is orpiment toxic?
A: Orpiment is toxic because it gets a layer of arsenic trioxide on it by oxidation in the air.
Q: What was orpiment used for in the past?
A: Orpiment was used as a pigment because it was one of the only yellow pigments that they could find, and it was also used to remove hair from hides.
