μαρμᾰρ-εος · marmar-eos — LSJ
flashing, gleaming, twinkling
flashing, gleaming, esp. of metals, αἰγίς, ἄντυξ, Il. 17.594, 18.480; πύλαι Hes. Th. 811; ἅλα μαρμαρέην the twinkling sea, Il. 14.273; αὐγαὶ μ. Ar. Nu. 287 (lyr.); ἄστρα Orph. Fr. 168.13.
II of marble
of marble, λίθος IG 7.2544 (Thebes); στήλη ib. 14.1603; δόμος AP 6.123 (Anyt.), cf. PRyl. 227.16 (iii A.D.).