zarnic

zarnic [Ar. zarnīkh], bright yellow trisulphide of arsenic, orpiment, zarnich. sulphur †zarnet [l. ~ec], i. e. auripigmentum, cito comburitur et a combustione cito consumitur Rob. Angl. (I) Alch. 515a (cf. ib. rec. 1 24: sulfur et auripigmentum comburuntur et in combustione diu non durant; LC 272a: ~ich, ~ec, ~eck, est auripigmentum).