Question

An unknown mineral breaks along smooth planes when hit with a hammer. Which mineral property does this show?
(1 point)
Responses

cleavage
cleavage - no response given

hardness
hardness - no response given

fracture
fracture - incorrect

density

Answer 1

The property that the unknown mineral demonstrates by breaking along smooth planes when hit with a hammer is **cleavage**. Cleavage refers to the tendency of a mineral to break along certain planes of weakness, resulting in smooth, flat surfaces.