There are several other types of cave formations in the Carlsbad Caverns — including soda straws, draperies, lily pads, cave pearls and cave popcorn. In modern times, few of these limestone ...

The walls of the cave crumbled in her hands, and chambers were loaded with opal "soda straws," a geological novelty found nowhere else in the world. "I went in there and was like, 'Holy crap, look at ...