Magical Mythic powers of rubies?

Question

particulary a red ruby cross lined in gold with a silver at intersection pt

Answer 1

The red ruby was regarded as a valuable and cherished jewel, and it was thought to have magical powers that restrained lust, drove off wicked spirits, and warned of the presence of poisons.
(Careful with it, in spite of its color, it diminishes 'lust', just like amethysts do).
http://www.steincollectors.org/library/articles/Glass/Superstitions.html

Answer 2

Ruby : Sun, Mars. Heart Chakra. Compassion, leadership, heals relationship to Father.