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