An Indonesian volcano has erupted what appears to be electric-blue lava flows, as photographed by Reuben Wu. Although surreal, this bright blue coloration is a result of nothing more than a tweak of chemistry.

Lava lets out a vast amount of thermal energy, as you might imagine, enough in fact to cook a steak over several times. This emission of thermal radiation gives lava its red hue. In this case, however, the lava is actually burning something else: pockets of sulfur.When ignited, in this case by the searing heat of the lava itself, it burns an iridescent blue.

Sulfur gases are, apart from being horrifically pungent, incredibly damaging to the respiratory system. Aside from being an aesthetic wonder to marvel at, this volcano can kill you without the lava even touching you.

bbabo.Net