Halite and gypsum can form "beards" and "flowers" in these locations.
Glacial versions of these structures often form in conjunction with moulins. Moonmilk is sometimes also named for these locations, since it, like boxwork, is only found there. These places can have "spongework," "branchwork" or "ramiform" shapes. Brown and beige layers of "draperies" of flowstone form these places' namesake (*) "bacon." Anchialine versions of these structures mix salt and fresh water. Halite and gypsum can form "beards" and "flowers" in these locations. The "Chandelier Ballroom" is found in one named Lechuguilla. Capillary action allows oddly curving helictites to defy gravity in these places. Thin, hollow "soda straws" form in these places, a defining feature of karst topographies, as do all other speleothems like stalactites and stalagmites. For 10 points, name these natural underground spaces which spelunkers explore.
Glacial versions of these structures often form in conjunction with moulins.
caves [or caverns]