Inside the Crater That Leaks Neon Blue 'Lava

Reuben Wu traveled thousands of miles to photograph a volcano where the sulfuric gases glow blue.

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Blambangan Heritage

Spectacular Neon Blue Lava: Kawah Ijen Volcano (PHOTOS)

Bright Blue Lava Spews From Indonesia's Kawah Ijen Volcano

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Blambangan Heritage

Neon blue lava pours from Indonesia's Kawah Ijen Volcano. The reason it's blue is because the mountain contains large amounts of pure sulfur, which emits an icy violet colors as it turns.

Why Does This Indonesian Volcano Burn Bright Blue?, Science

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Moment Kilauea lava bursts through volcano's crater captured on camera, News

Global Volcanism Program