Hearthstone is an onyx table lamp lit by gently pulsing LEDs that suggest the flicker of a flame. Like an open fire, the lamp needs tending to remain lit. Clusters of light fade off after 10 minutes and must be continuously relit with a touch sensor. The attention that the lamp requires positions Hearthstone as a social gathering place, much like a fireplace functioned before homes had central heating and TV. Hearthstone is intended to be a tabletop centerpiece, a topic of conversation, and a meditative activity. Its drifting glow draws the eye to evoke a sense of mystery and wonder.