My ole pal Gwilym just sent me this over. As he said, why the hell haven't we heard about this before?! KRYPTON ON EARTH! Sweet Jesus!
Forsooth. Above you see footage from a new BBC series called How The Earth Made Us. The footage is of Mexicos' so-called Cave Of Crystals... an underground chamber containing some of the largest crystals ever found. Some of those bad boys have grown to over 10m long! Iesu grist!
Go read more about it here.