metal
From LSJ
νοεῖν γάρ ἐστι κρεῖττον καὶ σιγὴν ἔχειν → it's better, you see, to understand and yet say nothing (Menander)
Use copper, iron, silver, gold, etc.
metals: P. μεταλλεῖα, τά (Plato, Leges 678D; cf., Plato, Critias, 114E).
molten metal: V. μύδρος, ὁ.
