Antarcticite is a unique character from the anime series "Houseki no Kuni" (Land of the Lustrous). Known for their role during the winter, Antarcticite is a gem that only appears when the temperature drops low enough to solidify them. They take on the responsibility of guarding the other gems during hibernation. With their calm and composed demeanor, Antarcticite is highly skilled in combat, wielding an ice pick with precision. Their relationship with the protagonist, Phosphophyllite, is pivotal, highlighting themes of friendship and sacrifice in the series.