A multi-pointed star-shaped crystal seen in the third season of [[Bishoujo Senshi Sailor Moon]]. They are physical representations of a human's heart, and if forcefully removed and not returned to its owner, the person will eventually die. The [[Space Sword]] and [[Deep Aqua Mirror]] are hidden within the Pure Heart Crystals of two unknown owners, whom [[Sailor Uranus]] and [[Sailor Neptune]] are trying to find before the Death Busters can.

[[Sailor Saturn]]'s initial brooch resembles a Pure Heart Crystal, but is not hers in itself.
pure heart crystal