Studies on Igelström's type specimens show that the following names should be relegated to synonymy: arseniodialytitc (= hausmannite), arseniopleite (= caryinite), basiliite (= hausmannite + feitknechtite), chloroarsenian (= allactite), ferrostibian (= långbanite), hematostibiite (= catoptrite), magnetostibian (= jacobsite), neotostibian (= hausmannite + feitknechtite), pleonectite (= hedyphane; = tepliroite-knebelite; = berzeliite), pleurasite (= sarkinite, in part), pyrrhoarsenite (= berzeliite), retinostibian (= welinite), rhodoarsenian (= rhodonite), sjögruvite (= caryinite), and nytt arseniat (new arsenate) (= ganophyllite).