Bloodstone

Bloodstone was the Realms name for the mineral heliotrope, a deep green-gray chalcedony with inclusions of red jasper.

Description
This semi-precious stone was usually cut cabochon with beveled edges, in smooth ovals which tended to resemble drops of blood. A typical bloodstone has a base value of 50 gp. Historically, bloodstone was also sold in bars worth twenty-five gold pieces, each with the stamp of a Damaran noble house.

History
Bloodstones were mined throughout the Galena Mountains in places such as the Bloodstone Mines primarily in Damara and supported a thriving gem trade in that region.