Zendalure

Zendalure is a gemstone unique to the Realms where it is found as large (two to six inches or five to fifteen centimeters in diameter) egg-shaped crystals in solidified lava flows. These mottled blue-white crystals are polished to a glassy finish and are most often seen as inlays and tiny cabochons in rings, earrings, and pendants. A typical specimen has a base value of 1000gp.