Glossary of Karst and Cave Terms
botryoid, botryoidal speleothem
1. Generally sub-spherical or globular calcium carbonate deposits ranging in size between tiny beads and masses up to 1 m across. Botryoidal describes a form resembling a bunch of grapes . 2. A grape-like deposit of calcium carbonate generally found on walls of caves . Synonyms: clusterite; grape formation. See coralloid speleothem.