A key difference with lava stalactites is that once the lava has ceased flowing, so too will the stalactites cease to grow.
2.
The generic term " lavacicle " has been applied to lava stalactites and stalagmites indiscriminately, and evolved from the word " icicle ".
3.
The lava tube is remarkable for its length and for the number of well-preserved lava cave features, such as lava stalactites and curbs, the latter marking high stands of the flowing lava frozen on the lava tube walls.
4.
Essentially, it is still the deposition of material on the ceilings of caves, however with lava stalactites formation happens very quickly in only a matter of hours, days, or weeks, whereas limestone stalactites may take up to thousands of years.