glowing crystal formations in a cave

cave crystal geology mineral natural nature rock stalactite stalagmite underground formation glowing light texture abstract luminescent cavern geological crystalline subterranean mineralogical craggy icicle speleothem cavernous radiant glistening rocky prismatic lustrous iridescent phosphorescent shimmering stalactitic stalagmitic grotto cavelike illuminated luminous incandescent glimmering sparkling gleaming luminiferous ai generative generated synthography