Fujichrome Velvia 50, OM-2S, 50mm macro lens, 1/60 second at f/11, T32 electronic flash, handheld.
"This fibrous sulfate cotton grows in large clumps throughout sections of the 'Crystal Palace' in Cumberland Caverns. Here, individual strands of gypsum can be over three inches long and are delicate enough to sway in a breeze."