True, but for example carbon nanotubes are also just "form of carbon" and they are great for lot of uses, but have about the same effect on human bodies as Asbe

True, but for example carbon nanotubes are also just "form of carbon" and they are great for lot of uses, but have about the same effect on human bodies as Asbestos, [1] so asking about this is legimitate. You're right that Graphene is ok, though. [1]: https://en.wikipedia.org/wiki/Carbon_nanotube#Toxicity https://en.wikipedia.org/wiki/Carbon_nanotube#Toxicity