Adventures in the Borderlands
This roughly-cut crystal glows with a gentle white light.
These common, semi-magical crystal have hundreds of uses. Generally they are used to add light effects to other objects.
When activated, glowstones raise the light level in a radius of 30’ by one step, from darkness to dim light, or from dim light to bright light.
By casting different spells on glowstones, they can be attuned to turn on or off based on different criteria, included sound, temperature, or motion.