Slytherin's Locket

Salazar Slytherin's Locket was an heirloom of the Slytherin family, owned originally by Salazar Slytherin. It was a heavy gold locket with Sytherin's mark (a serpentine "S"). The locket was passed down the Gaunt family line to Tom Riddle's mother, Merope Gaunt. Merope sold the locket to Borgin and Burkes, and it was bought by Hepzibah Smith. Tom murdered Hepizath and stole the locket to use as a horcrux.

Powers
Besides being a horcrux, there is no information on any powers possessed by the locket.

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In the spring of 1997, Albus Dumbledore and Harry Potter traveled to a remote cave on an island in a lake in an attempt to find the locket. Dumbledore was forced to drink a potion which was slowly killing him in order to get to the locket at the bottom of a large basin.

It was later discovered that the locket in the basin was, in fact, a fake. A note in the locket read:


 * To the Dark Lord
 * I know I will be dead long before you read this but I want you to know that it was I who discovered your secret. I have stolen the real Horcrux and intend to destroy it as soon as I can. I face death in the hope that when you meet your match you will be mortal once more.
 * R.A.B.

The current location of the real locket, and its status as a horcrux, are unknown.