Kermes mineral

(redirected from Poudre des Chartreux)
(Old Chem.) An artificial amorphous trisulphide of antimony; - so called on account of its red color.
(Med. Chem.) A compound of the trioxide and trisulphide of antimony, used in medicine. This substance occurs in nature as the mineral kermesite.

See also: Kermes, Kermes