Based on the information provided, you are describing a stalagmite or a stalactite. These mineral formations are commonly found in caves. Stalagmites grow upwards from the floor of a cave, while stalactites hang down from the ceiling. They are made from minerals dissolved in water that drips within the cave over a long period of time, often thousands or millions of years. These formations are not alive, as they do not have cells or biological functions.
