Hēraclēus

a, um, adj.
I. of or belonging to Heraclea (in Lydia), Heraclean: lapis, also called Lydius, Plin. 33, 8, 43, § 126; of the magnet, id. 36, 16, 25, § 127.
Lewis & Short
A Latin Dictionary, 1879
An open-access project