Erik, I beg to differ on the No stone artifacts were found in Newfoundland.  I Can't remember where I saw it, but it could have been the history channel, science channel, national geographic, etc. but one of them showed a couple of spear blades, and a knife blade made out of Nephrite, a type of jade, which is extremely hard, and durable.  The blades were in the Viking styles, and were ground and highly polished.  No, I am not an expert.  I don't believe I have stated so.  Are you?  I didn't mean to step on your tail.   

     I have seen this article a few years back.  And they were found  in the Viking ruins in Newfoundland.  Whether these blades were used as weapons, or not, I don't know.  But to go to all that trouble to grind a chunk of nephrite, and shape it, and polish it, I would think it would be used.  Nephrite is extremely hard stuff. It is found in Newfoundland, and Canada.  How the blades were ground and shaped I have no idea.  But they were found among other artifacts.  As to how I know it was a Viking skull, I am taking the word of Claude Van Order, who was at the museum in Denmark, and it was listed as a viking skull.  So I wasn't in on the archaeological dig, and have no idea of how the museum, knows it was a viking.  I will take their word till it is disproved by some other archaeologist down the road, with newer techniques, and scientific information. 

  I am sure the museum can explain how they know it was a viking skull.  If I ever hit the power ball, I will personally go there and ask them.  Hell, I will even take you along also.  They can answer a lot of questions.  Do you speak Danish?  That would be a big plus. 

                                                                                Wayne