I was told by a friend that the crystal necklace the first hokage owned was made of a special ore from a meteorite. but i cannot find in the manga where this is stated. is this a true statement? does any one know the material it was made of and why it reacts to mokuton and has the power to control tailed beasts? I was wondering because this could be evidence as to if kaguya came from a different planet. if the crystal was indeed a meteorite, this could be a link between kaguya's chakra and an object from outter space, thus linking kaguya to extra terrestrial origin. but is this true? what was the necklace made of?