Blue lava, mainly found on Kawah Ijen and Erta Ale occurs when sulfuric gas combusts due to the intense heat when it meets the air, from the lava, causing blue flames to appear and give the impression that the lava is actually coloured blue. ************************************* Only I have the Key to my happiness Only I hold the Key to my heart Only I hold the Key to my story Only I know what happened at the start. **************************************All Rights Reserved