Heartstone

Heartstones (心宝石 Kokoro hōseki) are heart-shaped gemstones prevalent in the Nihonverse.
There are hundreds of heartstones across Onmyou, though only three are housed at Omori Palace.
== List of heartstones ==
* Friendship Heart
* Ocean of Friendship
* Emerald of Wisdom
* 
== Etymology ==
* Heartstone is a pun on "hearthstone".
* Heartstone is also a portmanteau of "heart" and "stone", hence its heart-shaped appearance.
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Category:Hearts