Yeah, that's why I'm skeptical of the claims that they can apply this discovery to things as large as F1 Race cars. We've been hearing claims about what graphene could potentially accomplish for years now, but a large problem remains in cost-efficient manufacturing (although I'm sure there are other factors I'm unaware of).
GoethiteGoethite is an iron oxyhydroxide containing ferric iron. It is the main component of rust and bog iron ore. Goethite's hardness ranges from 5.0 to 5.5 on the Mohs Scale, and its specific gravity varies from 3.3 to 4.3. The mineral forms prismatic needle-like crystals ("needle iron ore"), but is more typically massive.
The mineral being needle like means the creature doesn't need to 'sharpen' its teeth. They come sharp as a property of the mineral structure. Very interesting.