• BarqsHasBite@lemmy.world
    link
    fedilink
    English
    arrow-up
    22
    ·
    edit-2
    3 months ago

    Photomicrographs of feldspathic (L) and lithic ® greywacke. The top images are in plane-polarized light; the bottom images are in cross-polarized light. Cements fill the pore spaces.

    Closeup of Pharaoh Menkaure’s greywacke statue, 25th century BCE, from the Egyptian Museum in Cairo

    • Yokozuna@lemmy.worldOP
      link
      fedilink
      English
      arrow-up
      2
      ·
      3 months ago

      For some reason the images aren’t showing up for me. I’m using Sync on my phone - are these images formatted correctly? If they are I’m gona send a bug report to the dev 🙃