Example sentences:

Ramayana:  Although thousands of monkeys marched across the bridge, it turned out to be neither friable nor sinkable. 

Mahabharata:  The tunnel-maker sent by Vidura noted where the palace floor and the underlying earth were friable, then started making a tunnel from the palace to the forest.

Bhagavad-gita:  Whereas the soul is not friable or destructible in any way, the body is damageable and destroyable in hundreds of ways.