Nanodiamond size and scale context

A nanodiamond is a nanoscale diamond particle made of carbon atoms arranged in the same crystal lattice as bulk diamond. Tiny grains like these can form in shock events, detonations, and some astrophysical environments, and nanodiamonds have also been identified in primitive meteorites, linking laboratory-scale materials to presolar and early Solar System chemistry. Read its scale context, comparisons, and journey links on the canonical object page.