Son of Leda and Zeus in Greek Mythology

This page is the CodyCross answer for the clue below from House of Horrors, Group 1112, Puzzle 3 (Evil Mastermind).

Question is: Son of Leda and Zeus in Greek Mythology

and the answer is: POLLUX

Word Meaning:

POLLUX — (mineralogy) A variety of petalite always found with castor.

Definitions from Wiktionary.