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 … See more

Similar objects can be found on all continents except Antarctica. They are associated with Celtic Europe, prehistoric Australia 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

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

These objects have received little study, perhaps because edged tools and weapons have more intrinsic interest to private collectors, … 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 1587 tells us that each household had stones for cracking nuts and for grinding shell and other materials." It goes on to say … See more

• Knocking stone See more