stalactite

Ceiling mineral formation

A stalactite is a mineral formation that hangs from the ceiling of a cave, created over thousands of years as water drips through rock and deposits dissolved minerals.

Stalactites grow downward like icicles: The cave was filled with stalactites glistening in the lamplight.

The companion formation growing upward from the floor is a stalagmite.

cave

cavern

Large natural underground chamber

chamber · speleology · spelunking · spelunker · caver · exploration · darkness · echo · humidity · bat

formation

column

Vertical structural element

bacon · moonmilk · boxwork · calcification · crystallization · deposition · accretion · precipitation · growth · drip

mineral

aragonite

Calcium carbonate crystal form

carbonate · crystalline · travertine · dolomite · limestone · marble · chalk · tufa · sinter · mineralogy

icicle

icicle

Hanging frozen water spike

  • frozenSolidified by extreme cold
  • frostThin ice coating
  • iceWater's solid form

winter · crystal · drip · conical · pointed · hanging · tapering · elongated · glassy · translucent

Categories
Opposites
cave formation direction

stalactitestalagmite

Upward-growing cave deposit

Family

stalactites

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G