Blue Lava

The most interesting part is the confusion this produces. The lava is not inherently blue. Instead, this event is produced by the combustion of a high concentration of sulfur in the area of the volcano. When sulfur ignites, it burns with a blue flame. So when the high concentration of sulfur comes in contact with the lava, the lava appears to turn blue

Blue Lava is found in...

10 Natural Things You Won't Believe Actually Exist
( 10 videos )
Item Position (rank): 8