ἴασπις
From LSJ
ἔξαψις σφοδρὰ μετὰ πολλῆς βίας πίπτουσα ἐπὶ γῆς → a violent flare-up falling on the ground with great force, thunder and lightning
English (LSJ)
ιδος (but acc.
A ἴασπιν Orph.L.267,613), ἡ, jasper, Pl.Phd.110d, IG22.1388.88, 7.2420 (Thebes, iii B.C.), Thphr.Lap.23, AP9.746 (Polemo). II = χρυσόγονον, Dsc.4.56. (Cf. Hebr. yāšpheh).