The malachite theme from steven universe. Malachite made an appearance at the end of the episode "jail break", and made a short appearance in a flash back in the episode "full disclosure", and last she made a short appearance in the dream realm in the episode "chill tid". Malachite is a fusion (no longer a fusion, due to new episodes) of the Homeworld gems jasper, a tough gem, supposedly a quartz bred in the Kindergarten (the atual gem jasper is a type of quartz), and lapis, a gem who was trapped in a mirror said to be found at "the galaxy warp", lapis is clearly a follower of blue diamond due to her attire (clothes). Not much is known of lapis. When these two very powerfull gems fuse, they are almost unstoppable. They are currently fused at the bottom of the ocean.
514wm tnx