κρυστάλλιον
From LSJ
πολλὰ τὰ δεινὰ κοὐδὲν ἀνθρώπου δεινότερον πέλει → many things are formidable, and none more formidable than man | wonders are many, and none is more wonderful than man | many things are bad, but nothing is more atrocious than man
English (LSJ)
τό,
A = ψύλλιον, Dsc.4.69 (Sicel). II rock-crystal, in pl., PHolm.11.43, Anon.Alch.p.359 B.
German (Pape)
[Seite 1516] τό, andrer Name für das Kraut ψύλλιον, Diosc.