Mineral: Oxide (Corundum)
Padparadscha is one of the Gems who mainly does patrol duty, but is currently inactive. They were born with an incomplete torso, which affects their consciousness. They're the partner of Rutile who also maintains their health. Very easygoing, but knows a lot more than what they let on. Wants the other gems to stop worrying about them, and would like to sleep in order not to burden anyone.
(Source: Houseki no Kuni Wikia)