Prismarine Pillars

When building atlantis-like underwater, pillars are great, but they don't blend too well with prismarine.  I'd like a block that resembles a quartz pillar, but more greenish-blue and possibly color changing like regular prismarine.  Maybe it could have some differences in design too like thinner lines than quartz pillars, or more of a spiral pattern?  It would also make naturally generated underwater structures cooler.