How do you destroy a horcrux?

[Kären Brandon]

No: HPFGUIDX 133353

Peggy,

I don't believe that AD ever specified how a horcrux is destroyed, but 
HP has already had experience with it, right? He destroyed Riddle's 
diary by puncturing it with the basilisk fang in CoS. From that, we 
may be able to assume that destroying the object will destroy the 
horcrux. After all, in the memory from the Pensieve, Gaunt's ring was 
not cracked, but when HP sees it on AD's hand, it's cracked.

Just my thoughts,

Kären