 SCP-681 is a slate sculpture in the form of a human skull missing its mandible. Resting on top of SCP-681, however, is SCP-682. This, SCP-682, appears to be a set of mineral appraisal tools connected to a large six centimeter eyepiece, which is in turn connected to a bronze head strap. Whenever a mechanical item of sufficient complexity is placed approximately 0.5 meters in front of an assembled SCP-680, however, several of the tools on SCP-682 begin to move of their own accord and set themselves to a unique setting seemingly tuned to the object in question.