dripstone
Mineral deposit overhead
Dripstone is rock formed by dripping water in caves—stalactites hanging from above, stalagmites rising from below.
The mineral-laden water deposits calcium carbonate drop by drop over thousands of years.
In architecture, dripstone is a projecting molding over a door or window that deflects rainwater, also called a hood mold.
Underground hollow in rock
- karstEroded soluble rock terrain
- spelunkerRecreational cave explorer
- cavingSport of exploring caverns
- explorationTraveling through unknown regions
chamber · subterranean · underground · darkness · sinkhole · fissure · percolation · hydrology
Hanging cave mineral deposit
- stalagmiteUpward-growing cave deposit
- calciteCrystalline calcium carbonate
- flowstoneCalcite sheet from seepage
- columnVertical structural element
curtain · drapery · aragonite · crystal · tubular · eccentric · deposit · accretion
Crystalline calcium carbonate
- aragoniteCalcium carbonate crystal form
- travertineLimestone from thermal springs
- tufaPorous calcium carbonate deposit
- sinterHeat-fuse without liquefying
sedimentation · mineralogy · crystallization · carbonate · calcium · precipitation · bedrock · stratigraphy
cave
Underground hollow in rock
exploration · chamber · subterranean · underground · darkness · sinkhole · fissure · percolation · hydrology · limestone
stalactite
Hanging cave mineral deposit
- stalagmiteUpward-growing cave deposit
- calciteCrystalline calcium carbonate
- flowstoneCalcite sheet from seepage
column · curtain · drapery · aragonite · crystal · tubular · eccentric · deposit · accretion · precipitation
calcite
Crystalline calcium carbonate
- aragoniteCalcium carbonate crystal form
- travertineLimestone from thermal springs
- tufaPorous calcium carbonate deposit
sinter · sedimentation · mineralogy · crystallization · carbonate · calcium · precipitation · bedrock · stratigraphy · geomorphology
cathedral
Bishop's principal church
- buttressArchitectural wall reinforcement
- facadeDeceptive outward appearance
- spireTapering architectural peak
archway · masonry · tracery · pinnacle · nave · apse · chapel · cornice · molding · projection
- cavescave, cavern, caves, caverns, grotto
- undergroundunderground, subterranean, cave systems, tunnels, tunnel
- cave formationsstalactite, stalagmite, stalactites, stalagmites, flowstone
- Mammoth CaveMammoth Cave, cave entrance, cave tours, stalactites, stalagmites
- mineral depositslimestone, chalk, salt, gypsum, calcite
- Gothic ornamentsgargoyle, tracery, finial, crocket, quatrefoil