Dragon heartstring

Dragon heartstring is a material from a dragon that can be used to comprise the core of a wand.

Known Users
In Ollivander's Wand Shop, the owner Ollivander is known to use dragon heartstrings as one of his three cores; others being the Unicorn hair and the Phoenix feathers.

Known Wands
The following wands have a dragon heartstring core:


 * Hermione Granger's wand
 * Viktor Krum's wand
 * Bellatrix Lestrange's wand
 * Lucius Malfoy's wand
 * Peter Pettigrew's wand