Stone ball (disambiguation)

A stone ball is a spherical man-made stone object.

Stone ball or stone sphere may also refer to:

Natural

• Spherulite, a small, rounded body occurring in vitreous igneous rocks
• Cannonball concretion, a natural cementation found in North Dakota
• Cave pearl, concentric layers of calcium salts found in limestone caves
• Products of spheroidal weathering

Artificial

• Stone spheres of Costa Rica, artefacts of unknown purpose from the Diquís culture
• Carved stone balls, artefacts of unknown purpose from prehistoric Scotland
• Various projectiles:
  • Round shot, a type of cannonball
  • Bolases, a throwing weapon

See also

• Petrosphere (disambiguation)