Minecraft wiki entry for Dripstone_cluster, associated text: The second type is a patch of dripstone blocks replacing a section of a cave’s walls, floor and ceiling. Pointed dripstone generates hanging from the ceiling and growing on the floor in these patches, attached to the dripstone blocks, forming detailed speleothem growths. Water puddles can also occasionally be found on the floor patches. When the two cluster types overlap, it results in pointed dripstone generating on the large columns of dripstone blocks.