Surprisingly not. The steam you see is, for the most part, water vapor. I am not a chemist or a volcanologist, but my understanding of the chemistry here is that when acid and alkaline, with the same atomic weight, react they result in water, H2O. It's like taking one H from the acid and one OH from the alkaline to get water. The muddy deposits are minerals brought up by the hot water and steam.
"Got tight last night on absinthe and did knife tricks. Great success shooting the knife into the piano. The woodworms are so bad and eat hell out of all furniture that you can always claim the woodworms did it."