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submitted 2 months ago by Yokozuna@lemmy.world to c/science_memes@mander.xyz

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[-] someguy3@lemmy.world 22 points 2 months ago* (last edited 2 months ago)

Photomicrographs of feldspathic (L) and lithic (R) 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.world 2 points 2 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 🙃