_____ is the ability of a mineral to break, when struck or split, along preferred planar directions.
A) Cleavage
B) Crystal form
C) Facets
D) Planes
E) Form

Question

Quizplus · Accepted Answer

Cleavage is the specific way a mineral breaks along preferred planes, whereas crystal form refers to the external shape of the mineral and facets are the flat polished surfaces on a cut gemstone. Planes and form are not specific to the breaking of a mineral.

_____ Is the Ability of a Mineral to Break, When