An eratic - that's erAtic, it means wiggly - stalactite, formed by capillary action causing the water to flow through tiny pores in the middle of each helictite, allowing them to grow in any direction, irrespective of gravity
A helictite is a speleothem found in limestone caves that changes its axis from the vertical at one or more stages during its growth. They have a curving or angular form that looks as if they were grown in zero gravity. They are most likely the result of capillary forces acting on tiny water droplets, a force often strong enough at this scale to defy gravity.