Slightly acid water seeping through the joints in the limestone overlying the cave dissolves calcium carbonate form from the rock, then precipitates it as the crystalline mineral, calcite, on emerging through the cave roof. Each drop of "hard" water may leave only a few molecules of calcite, but drop after drop after drop... the deposits develop.
a pillar!
Stone pillar formed when stalactite and stalagmite meet, or when stalactite reaches the floor of the cave.
stalactite and stalagmite
Pillars are formed when a stalactite growing downwards , joins a stalagmite growing upwards .
yes it can be formed
If a stalactite and a stalagmite joined it would form a column.
stalagmite
A stalactite is a structure that hangs from the ceiling of a cave and is formed by minerals dripping down, while a stalagmite is a structure that rises from the floor of a cave and is formed by minerals deposited from drips falling from the stalactite. When a stalactite and a stalagmite eventually meet and grow together, they form a column.
stalactite.... the one that formed below it is called stalagmite...
It can be seen that the stalactite has united with the stalagmite below
cave
cave