The volcano with blue ‘lava’ and a lake of pure acid…😨 With a lake of pure acid and strange blue flames that emanate from beneath the volcano, Kawah Ijen is surely one of the most dangerous places to work in the world. Yet people risk their lives to work at the crater…geologist Dr Glyn Williams-Jones and filmmaker Régis Etienne explain why. #Volcanic | BBC Earth

💙🌋 Blue lava… wait, what?! This surreal glow in Indonesia isn’t molten rock, but burning sulfur gas. At volcanoes like Ijen, sulfur-rich gases ignite as they escape at extreme temperatures, creating electric-blue flows that look like lava at night — one of Earth’s most jaw-dropping volcanic illusions. #BlueLava #Geology #GeologyPage #Volcanology #indonesia | Geology Page