Found this cool rock at lake Tahoe. It has 2 white rings around it that are so perfect I thought at first they were drawn. Now it lives in my Chia pet garden. Here’s an additional pic.

  • usualsuspect191@lemmy.ca
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    1 month ago

    They aren’t rings, but layers. There were likely many more cracks that filled and created other layers that later broke apart and eroded to form this rock.

    • CanadaPlus@lemmy.sdf.org
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      1 month ago

      Again,

      if so it’s remarkable the junction of the cracks ended up right at the surface of the rock.