At the playground the other evening, I made a small pile of flat pebbles. (I just had to look up the definition of pebble: “a rock fragment larger than a sand grain or granule and smaller than a cobble, which has been rounded by the action of water wind or glacial ice. It is therefore between 4 mm (~0.15 in) and 64 mm (~2.5 in)”. Pettijohn, F. J., 1949, Sedimentary rocks: New York, Harper and Brothers, 526 p)

I then became fascinated by how the small pile looked in the evening light.

There is something pleasant about these pebbles–most small people I take to the playground want to take some home with them. I made an arbitrary determination of 2 pebbles per visit, lest we depebble the playground.

But they really are nice pebbles–and I love how they look different in different light.