Nether biome: Red Cavern

NOTE: this would work best if the nether ceiling generated higher up (at y200 or build height).

A new biome in the nether. It would be this HUGE continuous cavern. It would have a magma block floor, and some lava pouring from the ceiling. It would be filled with huge stalactites and stalagmites made of netherrack, granite, quartz ore, and gold ore. Diamond blocks are sometimes found on the spires.

Minetores would spawn somewhat-rarely in the red cavern. They are pretty dangerous.

Magma cubes spawn commonly in the red cavern.