You searched for: “geofact
geofact (s) (noun), geofacts (pl)
A rock which is difficult to discern from a man-made artefact: Such geofacts are chipped naturally and look like real artifacts.

A geofact is also said to be a mineral or rock resource that is found in an archaeological site.

This often reveals evidence of a nearby quarry or some other exotic resource.

This entry is located in the following unit: geo-, ge- + (page 9)