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Indonesian Volcano Spews Hauntingly Beautiful Blue Lava

There are plenty of natural treasures hidden away in the most unsuspecting places on Earth. One of them is an Indonesian sulfur mine, Kawah Ijen, that produces stunning, spectral blue lava. The images of this mine are so breathtaking, I could just stare at them for hours.

Kawah Ijen is a part of the Ijen volcano complex – a group of stratovolcanoes in East Java, Indonesia – with an active crater that’s 200 meters deep. The complex is also home to the world’s largest turquoise-colored acidic lake, full of sulfuric acid. The lake is a sulfur mining site; miners carry sulfur-laden baskets by hand from the crater floor.

The miners work at night to double their meagre income, but they don’t have to worry about the dark. Kawah Ijen, an ordinary rocky crater by day, transforms into a stunning display of electric blue light at night.

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