Krakatau Vulkan (Indonesien) Juli 2012: Fumarolenfelder - Beautiful monoclinic sulfur needles form around some of the hotter fumarolic vents. (Photo: Tom Pfei...

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Beautiful monoclinic sulfur needles form around some of the hotter fumarolic vents. (Photo: Tom Pfeiffer)

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Copyright: Tom Pfeiffer / www.volcano-photo.com
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File: krakatau_i54285.jpg | Treffer

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