In addition to mining the traditional way, mining spots around the world have opened up and players will begin to notice them based on their skill level.
These mines hold much higher loads than the regular mines, and some may yield more than 1 ore, so keep trying to mine at them until you can't any longer.
Only Journeymen or above (preferably Master) should attempt to mine this way, as less skill than that will make noticing the ore very difficult.
I apologize for not announcing this sooner, but I wanted to at least make everyone aware of the different colored stones that can be obtained through mining. They've been around for quite a while, and were re-introduced a few months ago with the mining update.
a small chunk of bright red stone - Creates a wildfire that burns characters and consumes items left in the room.
a small chunk of bright blue stone - Creates a freezing wind that chills and weakens characters, and occasionally picks items up and tosses them through the air.
a small chunk of bright green stone - Creates a forest of vines that make travel through the area difficult.
All effects have a chance to spread to surrounding rooms, and will die away after a time.