Lucien is right, they were originally meant to be iron, however silver is much easier to forge and looks pretty too. Nothing wrong with having a silver troll cross, just not entirely canon. Thank you for the video!
Well actually my mother (Kari Erlands) is the inventor of the troll cross and she made I from a similar symbol that was was put on cattle to protect them from trolls, now regarding the validity of this symbol is highly speculative due to the fact there is no archeological evidence for this claim, none the less the jewlery is a new invention but it is supposedly made from an actual historical symbol
Trollkors are actually from the horseshoe placed abive entrances to stables and such. They are said to give "luck". But it's actually a trap" and should be placed with the two endings pointing down. That all "the luck runs out are bs stories later added
