EMERALD

The Emerald was considered a sacred stone to the the Goddess Venus.

The Egyptian Eye of Horus was sometimes of Emerald.

Emerald is associated with the starsign of Taurus.

The Alchemical tablet of Hermes Trismegistus was made of Emerald.

It was found clasped between his hands as a corpse.

The Emerald tablet included text upon which the principles of medieval alchemy were based.