Land Of The Lustrous, Volume 1 of 13 (by Haruko Ichikawa)

The young gem Phosphorite can t seem to do anything right. Phos has nothing but a big mouth and guts. Cinnabar, a classmate, is a loner, shunned by the other gems because of the toxins emitted from their body. But when they get together, they will learn that they both have an essential role to play in the fight against the Moonfolk, who are intent on coming to Earth to abduct the gem folk and destroy their world. A beautifully-drawn new action manga from Haruko Ichikawa, winner of the Osamu Tezuka Cultural Prize.