Blue lavasynchronAdjust content blockingContent Blocking nextrandomComment Prev Next A volcano in Indonesia produces lava that looks BLUE! Though the molten sulfur looks red in daylight, during the night, the blue flames that reach heights of 5 meters (16 feet) are highly visible. The sulfur, which is right around its melting point at 115°C (240 °F), is pumped away from the volcano so it can cool and be collected by miners for 680 rupiahs per kilogram (about 2.5 cents per pound). These photos were taken by award-winning photographer Olivier Grunwald. He faced extremely hazardous conditions during the shoot and had to wear a gas mask to protect himself against the toxic fumes. More info and images: http://bit.ly/1b00LMz Photo credit: Olivier Grunwald http://bit.ly/1m5hIdJ nextTags: science | Nature | lava | cool | interesting +163 -Favorite +Favorite Unsub from synchron Subscribe to synchron Unblock User's Content Block User's Content Want FJ to keep running? Please support it via Patreon: Receive hats, username change ability, no ads, colored text, and more.