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Rhyolite caldera complexes are the most explosive of Earth's volcanoes but often don't even look like volcanoes. They are usually so explosive when they erupt that they end up collapsing in on themselves rather than building any tall structure (George Walker has termed such structures inverse volcanoes).
When gas is present with these eruptions, they can be very violent and throw pumice stones high into the air. One of the largest rhyolitic eruptions happened in New Zealand at Lake Taupo more than 26,000 years ago, according to the GNS Science website on New Zealand's volcanoes.