Epidote

Epidote was a plentiful ornamental stone within the Realms.

Description
This stone's color ranged from clear (in the smallest crystals) to dark red (in larger crystal deposits). One variety could be cut into large cabochons of a deep rose color. A typical stone had a base value of 10 gp.

Powers
Crushed epidote was used in the formula for potions of undead control and in making the ink for inscribing scrolls with protection from undead.