Selenite is a short bisexual bat pony mare with a very long mane. She is a General directly answering to either Princess Luna or Nightmare Moon (depending on the circumstances of the timeline) with a keen interest in most academic subjects, specializing in military history and strategy. She spends her spare time reading, playing strategy games, planning for every scenario possible, or hanging out with her friends. Amongst her friends are Moonatik and Timetable. Her family consists of her mother, father, and twin brother.