The name of Hotaru's amulet given to stop her seizures

[Metroidvania]

Can someone help me out with the real name of Hotaru's amulet/talisman that was given to her to calm her fits?
Wiki doesn't have the name, and my primary research site is down...
And I'm almost positive it has an actual title, not just called the "amulet."

[Seraphim]

*scratches head* I don't think it actually has a name. Though it bares a great resemblance to the Taioron Crystal(?), at least in shape.

[Metroidvania]

Tioron Crystal

My research site just came back up (or allowed me to access it, I'm not sure with the randomness of my internet connection), and apparently, the Tioron crystal _is_ the amulet.
Thanks for the help, though.