• Question: do you know what is more microscopic than clay?

    Asked by Pickle to Lindsay on 23 May 2015.
    • Photo: K. Lindsay Hunter

      K. Lindsay Hunter answered on 23 May 2015:

      Clay particles are VERY small (less than 0.002 mm), so there aren’t any kinds of soil that are smaller. However, there are LOTS of non-geological things that are a LOT smaller, like DNA (2 nanometers wide), for instance. So, really, it depends on what you would like to compare your clay to! 🙂