Wolverines claws? Adamantium or Bone?

When it comes to Wolverine there are a lot of questions that Marvel can't explain,most mutants come into their powers as teens ,which would make it impossible to infuse the meal with bones because it would regenerate to quickly,but I would imagine this is what may have happened. Striker while during research on mutants found that he was a prime candidate to be Made a mutant as an adult,remember he ages like an immortal,therefore if he was a True mutant he would be a teen.