Fanon:Unobtainium Mine

is the rarest Mine you'll ever found in. It is generally only found in the Arctic Biome. If you're on other biomes, you have a 10% chance of them to spawn. They gives you Unobtainium, the rarest ore in the aforementioned game. You need these to have a maxed, 50 of them are required to max a Wunderwaffe DG. You can only mine them with Diamond Weapons or you'll never get them.

How to max your aforementioned weapon?

 * Get Age 60
 * Mine 50 Unobtainium
 * get the Wonder Weapon Upgrade Machine

Technical
You can find them mostly in Snow, but they give you only 5 Unobtainium. Every 10 Minutes, they spawn back.