“From all that I’ve read, what Harry did to Riddle’s diary was one of the few really foolproof ways of destroying a Horcrux.”
“What, stabbing it with a basilisk fang?” asked Harry.
“Oh well, lucky we’ve got such a large supply of basilisk fangs, then,” said Ron. “I was wondering what we were going to do with them.”

Harry Potter and the Deathly Hallows – J.K. Rowling