Rocks

Rocks are fragile for they can crack, chip

be subject to erosion and degrade with enough time. 

No rock can withstand the nagging 

tears of mother nature.

Hardness is its greatest downfall;

the mistake that causes it to 

break by its own doing, and its weight

forbids it to move in times of peril.

When a creature checks a rock to test

if it is indeed strong, she cannot see the internal

damage until it cracks.