They are in charge of winter. They behave like a soldier and like an only child. Their hardness is 3.<br /> <br /> Antarcticite is liquid during the other seasons, but they crystallize during the winter. They also get stronger the colder it gets.<br /> <br /> While the other Gems are hibernating, they fight the Lunarians together with Kongou-sensei. Since there&#039;s only a few sunny days, it&#039;s easy to predict when they&#039;ll attack. Their job also includes cutting ice floes, since the sound the floes make when scraping each other may bother the sleeping Gems.<br /> <br />