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  • noun

Words related to orpiment

a yellow mineral occurring in conjunction with realgar

References in periodicals archive ?
reduction of arsenic (V) to As (III) by bacteria and formation of insoluble arsenic sulfide complex under anaerobic conditions.
The weathering of rocks converts the arsenic sulfides in these minerals to arsenic trioxide that then enters into the environment as dust and dissolves in rain, rivers, and groundwater (Mandal & Suzuki, 2002; U.