Dragon heartstring is a material from a dragon that can be used to comprise the core of a wand. It is unknown from which varieties of dragon the heartstrings are collected from, and what effect this difference makes on the abilites of the wand, if any. Due to the heart being a vital organ in any creature, it can be assumed that the material is taken after the dragon has either died of natural causes or been killed. It is also unknown what quantity of string can be collected per animal's heart.
Usage by wandmakers
The wandmaker Ollivander is known to use dragon heartstrings as one of his three cores; the others being unicorn hairs and phoenix feathers. Gregorovitch also used dragon heartstring in his wands, such as the one he made for Viktor Krum.
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