Assertion: cave's stalactite | /r/CapableOf | form on concrete
Facets:
value: on plumbing
type: LOCATION
Source sentences:
text: Stalactites can also form on concrete, and on plumbing where there is a slow leak and calcium, magnesium or other ions in the water supply, although they form much more rapidly there than in the natural cave environment.
text: The way stalactites form on concrete is due to different chemistry than those that form naturally in limestone caves and is due of the presence of calcium oxide in cement.