The barren summit cone of Anak Krakatau (Photo: Uwe Ehlers / geoart.eu)
More on VolcanoDiscovery:
Ijen volcano photos
: Ijen volcano in East Java is famous for its turquoise acid crater lake and the large sulfur deposits that are being mined by local workers. At night, the scene is illuminated by ghostly blue flames, as sulfur ignites.
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