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Geology 101: Look at those massive formations!
Geology Definitions 101 Cleavage - The tendency of a mineral to break along flat planar surfaces as determined by the structure of its crystal lattice. These two-dimensional surfaces are known as cleavage planes and are caused by the alignment of weaker
heartstringscomic: (½) BonBonology 101. I assume earth ponies would generally be more interested in geology, botany, agricultural sciences etc. Of course, I have no idea if these are present in Equestria in the form we know them, so I rather not
