💙🌋 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

The Blue Flames Aren’t Lava—They’re Burning Sulfur At Kawah Ijen in Indonesia, rivers of glowing electric blue light flow down the volcano at night. Despite appearances, this isn’t molten rock—it’s liquid sulfur burning at about 1,110°F (600°C) as it ignites on contact with air. The rare phenomenon occurs where sulfur-rich gases escape and condense into liquid before igniting. Important Details: • Known as “blue lava” phenomenon • Actually burning liquid sulfur • Temperature around 1,110°F • Vis