One encyclopedia of archaeology treats "pitted stone", "cupstones", and "nutting stones" as synonyms and says that they "may have been formed by cracking nutshells, though this activity lacks adequate … See more

Similar objects can be found on all continents except Antarctica. They are associated with Celtic Europe, prehistoric Australia, Borneo and the Middle East. Some of the earliest … See more

Early observers saw the processing of mast using stones, and one later recreation achieved similar results: nuts were placed, one at … See more

• Knocking stone See more

These objects have received little study, perhaps because edged tools and weapons have more intrinsic interest to private collectors, but closer study of them might reveal … See more

There are several ethnographic accounts of the Native use of nutting stones in the historic times. One account says "the Virginia Indians in … See more

Nutting stones can be very similar in appearance to omars. Omars are naturally formed stones that have hemispherical bubbles in them. See more