All that glitters may be Orpiment!
摘要
Orpiment (haritāla), a golden-yellow mineral, has been widely known and used across cultures in art, cosmetics, metallurgy, alchemy, and medicine. Here, we discuss a detailed understanding of its therapeutic and toxic properties developed through observation and experimentation, evolving independently across regions. In India, references from the Mahābhārata to Ayurvedic and Siddha texts describe its role in medicine and in metallurgical processes that made base metals glitter like gold-hence, all that glitters may indeed be orpiment. Comparable applications appear in Chinese alchemical, artistic, architectural, and medical traditions, while in Europe, their use remained mainly artistic, alchemical, and metallurgical. Its application in Buddhist murals and illuminated manuscripts represents early developments in material science. The paper presents the geographical distribution, textual references, and cultural significance of orpiment in India, China, and Europe.