χαλκωρυχεῖον
From LSJ
ὄρνιθι γὰρ καὶ τὴν τότ᾽ αἰσίῳ τύχην παρέσχες ἡμῖν → for it was by a good omen that you provided that past fortune to us
English (LSJ)
τό,
A copper-mine, Thphr.Lap.25, Str.17.2.2, Plu. 2.659c, better written χαλκωρῠχ-ρύχιον, as in PPetr.3p.320 (iii B. C.), Str. l. c. (v. l.), Plu. l. c. (codd.).